NTL Optimus – Water Conditioner Reliable water conditioning for a safe and healthy aquarium NTL Optimus Water Conditioner is a high-quality solution designed to make tap water safe for aquarium use. It works instantly to neutralise harmful chemicals while protecting fish and supporting a stable aquatic environment. Whether you are setting up a new aquarium or performing regular water changes, this conditioner is an essential part of maintaining healthy water conditions. Available sizes 100ml 250ml 500ml Choose the size that suits your aquarium needs, from small tanks to larger systems. Why water conditioning is essential Tap water contains chlorine, chloramine, and heavy metals that can be harmful to fish and beneficial bacteria. Without proper treatment, these can cause stress, illness, or instability in your aquarium. NTL Optimus helps to: Neutralise chlorine and chloramine Detoxify heavy metals Protect fish slime coat Support beneficial bacteria Safe and effective formula The formula works instantly and is safe for fish, shrimp, and plants when used as directed. It reduces stress during water changes and helps maintain a stable, balanced aquarium environment. Ideal for all aquariums Suitable for: Freshwater aquariums New tank setups Routine water changes Community tanks and planted aquariums It provides a simple and reliable way to ensure your water is always safe. Complements your aquarium routine For best results, use alongside a complete care system: Biological support products to maintain filtration Plant fertilisers for healthy growth Water clarity solutions for a polished look A properly conditioned aquarium creates the foundation for long-term success. Easy to use Add the recommended dose to tap water before adding it to your aquarium, or dose directly during water changes. It works instantly with no waiting time required. Product details Available sizes: 100ml, 250ml, 500mlSuitable for freshwater aquariumsDesigned for water conditioning and fish safety Who is this for Ideal for beginners and experienced aquarists who want a simple, effective way to protect their fish and maintain safe water conditions. Start with safe water Every healthy aquarium begins with properly treated water. NTL Optimus Water Conditioner ensures your tank is safe, stable, and ready to support thriving aquatic life.

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Masterline Root Caps  – 10 pcs Targeted root nutrition for healthy aquatic plants Masterline Root Caps 10pk offers a convenient, smaller pack of slow-release root fertiliser designed to support strong, healthy plant growth directly from the substrate. Ideal for smaller aquariums or for trying out the Masterline range, these root caps deliver essential nutrients where root-feeding plants need them most. Why root feeding matters Many aquarium plants such as Amazon swords, Cryptocoryne, and Vallisneria absorb the majority of their nutrients through their roots. Over time, substrates can become depleted, leading to slow growth and poor plant health. Masterline Root Caps help to: Strengthen root systems Improve plant growth and vitality Enhance natural colour Prevent nutrient deficiencies in the substrate Slow-release nutrient formula Each capsule contains a balanced blend of essential macro and micro nutrients, including nitrogen, phosphorus, potassium, iron, and trace elements. The slow-release design ensures a steady supply of nutrients over time without negatively affecting water quality. Perfect for smaller setups This 10-piece pack is ideal for: Small aquariums Spot treatment for specific plants Testing the product before upgrading to larger packs Supplementing existing fertilisation routines Designed to work with the Masterline range For best results, combine with other Masterline products: Masterline I or II for water column fertilisation Masterline Carbo to support plant growth Masterline Safe Water for water conditioning Masterline Crystal Clear for water clarity Root caps feed the substrate, while liquid fertilisers nourish the water column, creating a complete and balanced system. Easy to use Insert one capsule deep into the substrate near the roots of your plants. Space capsules based on plant density and replace every 6 to 8 weeks for consistent results. Safe for fish and shrimp when used as directed. Product details Quantity: 10 capsulesSuitable for freshwater planted aquariumsDesigned for root-feeding plants Who is this for Ideal for beginners, nano tank owners, or aquascapers looking to target specific plants with additional root nutrition. Simple and effective plant support If you are looking for an easy way to improve plant health and root development, Masterline Root Caps 10pk is a practical and effective solution for any planted aquarium.

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Masterline FilterMax Advanced biological support for stronger filtration and a healthier aquarium Masterline FilterMax is a high-performance biological enhancer designed to boost your aquarium’s filtration system. It supports the growth and activity of beneficial bacteria, helping your tank process waste more efficiently and maintain stable, healthy water conditions. Ideal for both new setups and established aquariums, it plays a key role in keeping your ecosystem balanced and your water quality at its best. Available sizes 3000ml 10000ml Choose the size that suits your needs, whether you are maintaining a single aquarium or multiple systems. Why biological filtration matters A healthy aquarium depends on beneficial bacteria to break down harmful waste such as ammonia and nitrites. Without a strong biological system, these toxins can build up and stress or harm your fish. Masterline FilterMax helps to: Boost beneficial bacterial activity Improve breakdown of waste and organic matter Stabilise water parameters Support a healthier, more resilient aquarium Ideal for new and established aquariums This product is especially useful for: New tank setups and cycling After filter cleaning or maintenance Heavily stocked aquariums Systems experiencing instability or water quality issues It helps your filtration system recover quickly and operate at peak efficiency. Designed to work with the Masterline range For best results, use Masterline FilterMax alongside other Masterline products: Masterline Safe Water for preparing tap water Masterline II or All In One fertilisers for plant nutrition Masterline Carbo to support plant growth Masterline Root Caps for substrate feeding Masterline Crystal Clear for water clarity Together, these products create a complete system that supports both plant health and overall aquarium stability. Easy to use Add the recommended dose directly into your aquarium or filter. Regular use helps maintain a strong biological balance and improves long-term water quality. Product details Available sizes: 3000ml, 10000mlSuitable for freshwater aquariumsDesigned for biological filtration support Who is this for Ideal for beginners setting up a new aquarium, as well as experienced hobbyists looking to improve filtration performance and maintain stable water conditions. Strengthen your aquarium from within If you want cleaner water, healthier fish, and a more stable aquarium environment, Masterline FilterMax is an essential addition to your maintenance routine.

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Masterline All In One Lean Controlled fertilisation for balanced, algae-conscious plant growth Masterline All In One Lean is a carefully balanced all-in-one fertiliser designed for aquariums that require a more controlled nutrient approach. It provides essential macro and micro nutrients in lower concentrations, making it ideal for maintaining healthy plant growth while reducing the risk of excess nutrients and algae. Perfect for aquarists who prefer a lean dosing method or run lower-tech planted aquariums. Available sizes 200ml 500ml 1000ml 5000ml Choose the size that fits your aquarium setup, whether you are maintaining a single tank or multiple systems. Why choose a lean fertilisation approach In some aquariums, especially those with lower lighting, no CO₂, or lighter plant loads, full-strength fertilisation can lead to nutrient buildup and unwanted algae. Masterline All In One Lean helps you: Maintain steady, controlled plant growth Reduce the risk of algae caused by excess nutrients Prevent nutrient accumulation in the water column Keep your aquarium stable and balanced Complete nutrition in a lighter formula This all-in-one solution still provides the essential nutrients your plants need, but in a more controlled ratio: Nitrogen (N) for healthy growth Phosphorus (P) for root and energy support Potassium (K) for overall plant health Iron (Fe) and trace elements for colour and balance It delivers consistent results without overloading your system. Ideal for low to medium demand aquariums Masterline All In One Lean is best suited for: Low-tech aquariums without CO₂ Tanks with moderate lighting Aquariums with fewer or slower-growing plants Hobbyists following a lean dosing method It can also be used in high-tech setups where tighter nutrient control is preferred. Designed to work with the Masterline range For best results, combine with other Masterline products: Masterline Root Caps for targeted root feeding Masterline Carbo to support plant growth Masterline Safe Water for water conditioning Masterline Crystal Clear for maintaining water clarity This combination ensures a balanced and stable aquarium environment. Easy to dose Add the recommended amount directly into your aquarium on a regular schedule. Consistent dosing helps maintain stable nutrient levels and supports long-term plant health. For best accuracy, use a dosing pump. Product details Available sizes: 200ml, 500ml, 1000ml, 5000mlSuitable for freshwater planted aquariumsDesigned for regular dosing Who is this for Ideal for beginners, low-tech aquarium owners, and experienced aquascapers who prefer a more controlled and minimal nutrient approach. Keep your aquarium balanced and healthy If you want steady plant growth without the risk of over-fertilisation, Masterline All In One Lean offers a simple and effective solution for maintaining a clean, stable, and visually balanced aquarium.

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Masterline All In One Red Premium complete fertiliser for vibrant red plants and balanced growth Masterline All In One Red is a specialised all-in-one aquarium fertiliser designed to promote strong, healthy plant growth while enhancing red pigmentation in demanding aquatic plants. It provides a complete balance of macro and micro nutrients in a single solution, making plant care simple, efficient, and highly effective. Perfect for aquascapers who want intense colours, especially in red stem plants like Rotala, Ludwigia, and Alternanthera species. Available sizes 200ml 500ml 1000ml 5000ml Choose the size that suits your aquarium setup, whether you are maintaining a single display tank or managing multiple planted systems. Designed for red plant enhancement This formula is specially developed to support vivid red coloration while maintaining strong overall plant growth. It helps plants achieve their full colour potential under proper lighting and CO₂ conditions. Benefits include: Enhanced red and pink pigmentation Strong, balanced plant growth Improved leaf structure and density Reduced nutrient deficiencies Complete all-in-one nutrition Masterline All In One Red simplifies aquarium fertilisation by combining essential nutrients into one easy dosing solution: Nitrogen (N) for healthy growth Phosphorus (P) for root development and energy Potassium (K) for overall plant strength Iron (Fe) for vibrant red and green coloration Essential trace elements for balanced plant health Ideal for high-tech planted aquariums This fertiliser is best suited for aquariums with strong lighting, CO₂ injection, and demanding plant species. It ensures plants receive everything they need for optimal growth and colour expression. Designed to work with the Masterline range For best results, combine with other Masterline products: Masterline Root Caps for strong substrate feeding Masterline Carbo for enhanced carbon availability Masterline Safe Water for safe water preparation Masterline Crystal Clear for improved water clarity Together, they create a complete and stable planted aquarium system. Easy to dose Add the recommended amount directly into your aquarium on a regular schedule. Consistent dosing ensures stable nutrient levels and prevents deficiencies or algae issues. For best results, use a dosing pump for accuracy and consistency. Product details Available sizes: 200ml, 500ml, 1000ml, 5000mlSuitable for freshwater planted aquariumsDesigned for regular dosing in planted tanks Who is this for Ideal for aquascapers and planted tank enthusiasts who want intense red plant coloration, professional-level growth, and a simplified fertilisation routine. Bring out the best in your aquascape If you want richer colours, healthier plants, and a fully balanced fertilisation system, Masterline All In One Red is the perfect solution for achieving a vibrant, professional-looking planted aquarium.

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Masterline II Complete macro and micro nutrition for advanced plant growth Masterline II is a comprehensive all-in-one fertiliser that provides both macro and micro nutrients required for strong, healthy plant growth in planted aquariums. Designed for aquariums with moderate to high plant demand, it simplifies dosing while delivering balanced nutrition for optimal results. Available in multiple sizes, Masterline II is ideal for hobbyists who want a complete and efficient fertilisation solution. Available sizes 200ml 500ml 1000ml 5000ml Choose the size that best suits your aquarium setup, whether you are running a single tank or multiple high-demand systems. Complete plant nutrition in one solution Healthy aquatic plants require a combination of macro nutrients and trace elements to thrive. Masterline II combines everything into one easy-to-use formula, including: Nitrogen (N) for strong, leafy growth Phosphorus (P) for root and energy development Potassium (K) for overall plant health Iron (Fe) and trace elements for vibrant colour and balance This balanced approach supports consistent growth, improved coloration, and stronger plant structure. Ideal for high-demand planted aquariums Masterline II is best suited for aquariums with medium to high lighting, CO₂ injection, or dense plant mass. It ensures your plants receive all essential nutrients without the need for multiple separate products. It can also be used in simpler setups with adjusted dosing. Designed to work with the Masterline range For optimal results, use Masterline II as part of a complete aquarium system: Masterline Carbo to provide a carbon source for plant growth Masterline Root Caps for substrate feeding Masterline Safe Water for water conditioning Masterline Crystal Clear to maintain water clarity Together, these products create a balanced ecosystem that supports long-term plant health and stability. Easy to dose Add the recommended daily or weekly dose directly into your aquarium. Consistent dosing will help maintain stable nutrient levels and prevent deficiencies. For best results, pair with a dosing pump for accurate and repeatable application. Product details Available sizes: 200ml, 500ml, 1000ml, 5000mlSuitable for freshwater planted aquariumsDesigned for regular dosing Who is this for Ideal for aquascapers and hobbyists who want a complete fertilisation solution without the complexity of separate dosing. Perfect for planted tanks with higher nutrient demands. Simplify your fertilisation routine If you want strong growth, vibrant plants, and a complete nutrient solution in one bottle, Masterline II is the perfect choice for maintaining a thriving planted aquarium.

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Masterline I Essential micro nutrients for healthy, vibrant plant growth Masterline I is a premium micro nutrient fertiliser designed to provide your aquarium plants with all the essential trace elements they need for strong, balanced growth. It plays a crucial role in maintaining vibrant colours, healthy leaves, and overall plant vitality in planted aquariums. Available in multiple sizes, Masterline I is suitable for both beginner setups and advanced aquascapes. Available sizes 200ml 500ml 1000ml 5000ml Choose the size that matches your aquarium needs, whether you are maintaining a single display tank or multiple systems. Why micro nutrients matter While macro nutrients like nitrogen and potassium are important, plants also rely on trace elements in smaller amounts to function properly. Without them, plants can develop deficiencies, poor coloration, and slow growth. Masterline I provides: Iron (Fe) for rich, vibrant colours Trace elements for balanced development Support for healthy leaf structure Improved overall plant health Ideal for all planted aquariums Masterline I is suitable for both low-tech and high-tech aquariums. It can be used on its own or combined with other fertilisers depending on your setup. For tanks with higher plant demand, it is best used alongside a full fertilisation system. Designed to work with the Masterline range For optimal results, use Masterline I as part of a complete nutrient system: Masterline II for full macro and micro nutrition Masterline Carbo to provide a carbon source for plant growth Masterline Root Caps for substrate feeding Masterline Safe Water for water conditioning Masterline Crystal Clear for maintaining water clarity By combining water column feeding with substrate nutrition and proper conditioning, you create a stable and thriving environment for your plants. Easy to dose Add the recommended daily or weekly dose directly into your aquarium. Consistent dosing will help maintain stable nutrient levels and promote steady plant growth. For best results, pair with a dosing pump for accurate and repeatable application. Product details Available sizes: 200ml, 500ml, 1000ml, 5000mlSuitable for freshwater planted aquariumsDesigned for regular dosing Who is this for Perfect for beginners starting their planted aquarium journey as well as experienced aquascapers looking to maintain precise nutrient control and achieve professional results. Support healthier, more vibrant plants If you want deeper colours, stronger growth, and a balanced planted aquarium, Masterline I is an essential part of your fertilisation routine.

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Masterline Carbo Liquid carbon for enhanced plant growth and healthier aquariums Masterline Carbo is a highly effective liquid carbon supplement designed to support strong, healthy plant growth in planted aquariums. It provides an accessible source of carbon, one of the most essential elements for photosynthesis, helping your plants grow faster, fuller, and more vibrant. Available in multiple sizes, Masterline Carbo is suitable for everything from small home aquariums to large, high-demand aquascapes. Available sizes 200ml 500ml 1000ml 5000ml Choose the size that best suits your aquarium needs, whether you are maintaining a single tank or multiple systems. Why carbon supplementation matters Carbon is a key building block for plant growth, but in many aquariums, natural carbon levels are limited. Without enough carbon, plants struggle to grow and can become weak or pale. Masterline Carbo helps to: Boost plant growth and density Improve leaf colour and vitality Support efficient photosynthesis Help reduce algae by improving plant dominance Ideal for all planted aquariums This product is perfect for both low-tech and high-tech setups. It can be used as a standalone carbon source or alongside CO₂ injection to further enhance plant performance. It is especially useful in tanks where CO₂ systems are not used, offering a simple and effective alternative. Designed to work with the Masterline range For best results, use Masterline Carbo as part of a complete fertilisation system: Masterline I for essential micro nutrients Masterline II for full macro and micro nutrition Masterline Root Caps for substrate feeding Masterline Safe Water for water conditioning Masterline Crystal Clear for water clarity Together, these products create a balanced environment that supports long-term plant health and aquarium stability. Easy to dose Add the recommended daily amount directly to your aquarium. Consistent dosing will provide the best results and help maintain steady plant growth. Product details Available sizes: 200ml, 500ml, 1000ml, 5000mlSuitable for freshwater planted aquariumsIdeal for daily dosing Who is this for Perfect for beginners looking for an easy way to improve plant growth, as well as experienced aquascapers aiming for lush, professional results. Grow stronger, healthier plants If you want faster growth, richer colours, and a more vibrant aquarium, Masterline Carbo is an essential addition to your daily routine.

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Masterline Dosing Pump – 5ml Fast and accurate dosing for larger aquariums The Masterline Dosing Pump – 5ml is designed for aquarists who need to dose larger volumes quickly and accurately. Delivering approximately 5ml per pump, it simplifies routine dosing while ensuring consistency across your aquarium care routine. Ideal for larger tanks or higher dosing requirements, this pump helps you save time without sacrificing precision. Why accurate dosing matters Maintaining stable nutrient levels is essential for a healthy aquarium. Inconsistent dosing can lead to poor plant growth, algae issues, and stressed livestock. With the 5ml dosing pump, you can: Deliver consistent doses every time Reduce measuring errors Speed up daily dosing routines Maintain stable water parameters Built for efficiency This dosing pump is designed to fit Masterline bottles securely and provide smooth, reliable operation. The larger 5ml output per press makes it perfect for aquariums that require higher dosing volumes or for hobbyists managing multiple tanks. Perfect for the Masterline range The 5ml dosing pump pairs perfectly with all Masterline liquid products, including: Masterline I for daily micro nutrients Masterline II for complete fertilisation Masterline Carbo for enhanced plant growth Masterline Safe Water for water conditioning Masterline Crystal Clear for water clarity Using the correct dosing pump ensures you get accurate and consistent results from your entire Masterline system. Easy to use Simply replace your bottle cap with the dosing pump and press to dispense. Each full press delivers approximately 5ml, making it easy to follow your dosing schedule without additional tools. Product details Output per pump: 5mlCompatible with Masterline bottlesSuitable for aquarium fertilisers and liquid treatments Who is this for Ideal for aquarists with medium to large tanks, high-demand planted aquariums, or anyone looking to simplify and speed up their dosing routine. Dose with confidence If you want a faster, cleaner, and more efficient way to manage your aquarium dosing, the Masterline Dosing Pump – 5ml is the perfect solution for maintaining consistency and control.

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Masterline Dosing Pump – 1.2ml Accurate and effortless dosing for aquarium treatments and fertilisers The Masterline Dosing Pump is designed to give you precise control when dosing liquids in your aquarium. Delivering a consistent 1.2ml per pump, it makes daily dosing simple, accurate, and mess-free. Perfect for use with the full Masterline liquid range, this pump helps you maintain stable water parameters and consistent plant growth without the guesswork. Why accurate dosing matters Consistency is key in a healthy aquarium, especially in planted tanks. Overdosing or underdosing fertilisers and treatments can lead to poor plant growth, algae issues, or unstable conditions. With the Masterline Dosing Pump, you can: Dose the exact same amount every time Avoid spills and waste Maintain stable nutrient levels Simplify your daily routine Designed for convenience This dosing pump fits Masterline bottles perfectly and is built for smooth, reliable operation. The 1.2ml output per press makes it easy to follow dosing schedules without needing measuring tools. It is ideal for both beginners and experienced aquascapers who want a cleaner and more efficient way to manage their aquarium care routine. Perfect match for the Masterline range The dosing pump is the ideal companion for all Masterline liquid products, including: Masterline I for daily micro nutrients Masterline II for complete fertilisation Masterline Carbo for enhanced plant growth Masterline Safe Water for water conditioning Masterline Crystal Clear for water clarity Using a dosing pump ensures you get the most out of these products by applying them accurately and consistently. Easy to use Simply replace your bottle cap with the dosing pump and press to dispense. Each full press delivers approximately 1.2ml, making it easy to track your dosing. Product details Output per pump: 1.2mlCompatible with Masterline bottlesSuitable for aquarium fertilisers and liquid treatments Who is this for Ideal for aquarium hobbyists who want precise dosing, cleaner application, and a more professional approach to aquarium maintenance. Take the guesswork out of dosing If you want a simple, reliable way to dose your aquarium products with accuracy, the Masterline Dosing Pump is an essential upgrade to your setup.

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Masterline GH Plus – 250g Remineralise your water for stronger plants and healthier fish Masterline GH Plus is a premium mineral supplement designed to increase general hardness (GH) in aquarium water. It provides essential calcium and magnesium that are vital for healthy plant growth, proper fish development, and overall aquarium stability. Ideal for use with reverse osmosis (RO) water or naturally soft water, this product helps you create the perfect mineral balance for a thriving aquatic environment. Why GH matters in your aquarium General hardness (GH) measures the concentration of essential minerals like calcium and magnesium in your water. These minerals play a key role in: Strong plant structure and growth Healthy fish bone and scale development Proper biological function in your aquarium Low GH levels can lead to weak plant growth, poor coloration, and increased stress in fish and shrimp. Balanced mineral composition Masterline GH Plus delivers a carefully measured ratio of calcium and magnesium to support both plants and livestock. It allows you to precisely control your water parameters, making it especially useful for aquascaping and sensitive species. It dissolves easily and works quickly, ensuring consistent and reliable results. Designed to complement the Masterline range Masterline GH Plus is an important part of a complete aquarium system and works best when used alongside other Masterline products. Combine it with: Masterline Root Caps for nutrient-rich substrate support Masterline I or II for complete fertilisation Masterline Carbo for enhanced plant growth Masterline Safe Water to prepare tap water Masterline Crystal Clear to maintain water clarity By combining proper mineral balance with fertilisation and maintenance, you create ideal conditions for long-term success. Easy to use Dissolve the recommended amount in water before adding it to your aquarium. Adjust dosage based on your desired GH level and the needs of your plants and livestock. Perfect for use during water changes, especially when working with RO or demineralised water. Product details Size: 250gSuitable for freshwater aquariumsIdeal for planted tanks, shrimp tanks, and soft water setups Who is this for This product is ideal for aquascapers using RO water, hobbyists keeping shrimp or sensitive fish species, and anyone looking to improve plant health through proper mineral balance. Take control of your water parameters If you want stronger plants, healthier livestock, and precise control over your aquarium conditions, Masterline GH Plus is an essential addition to your setup.

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Masterline Safe Water – 500ml Complete water conditioner for a safe and healthy aquarium Masterline Safe Water is a high-quality water conditioner designed to make tap water safe for aquarium use. It instantly neutralises harmful substances such as chlorine and chloramine, while helping protect fish, plants, and beneficial bacteria. Whether you are setting up a new tank or performing routine water changes, this is an essential product for maintaining a stable and healthy aquatic environment. Why water conditioning is important Tap water contains chemicals that are safe for human use but harmful to aquarium life. Without proper treatment, these substances can stress or even harm fish and disrupt the biological balance of your tank. Masterline Safe Water helps to: Neutralise chlorine and chloramine Reduce heavy metals Protect fish slime coat Support beneficial bacteria This creates a safer, more natural environment for your aquarium inhabitants. Gentle and effective formula The formula works instantly and is safe for fish, shrimp, and plants when used as directed. It helps reduce stress during water changes and supports overall fish health, making it suitable for both beginner and advanced aquarists. Designed to complement the Masterline range Masterline Safe Water is the foundation of a healthy aquarium and works best when combined with other products in the Masterline range. Use alongside: Masterline Root Caps for strong root feeding Masterline I or II for complete plant nutrition Masterline Carbo for enhanced plant growth Masterline Crystal Clear to maintain water clarity By combining water conditioning, fertilisation, and maintenance, you create a balanced and thriving aquarium system. Easy to use Add the recommended dose to tap water before adding it to your aquarium, or dose directly into the tank during water changes. It works instantly, making your water safe without any waiting time. Product details Volume: 500mlSuitable for freshwater aquariumsIdeal for water changes, new tank setups, and regular maintenance Who is this for Perfect for anyone setting up or maintaining an aquarium, from beginners to experienced aquascapers who want to ensure a safe and stable environment for fish and plants. Build a healthier aquarium A successful aquarium starts with safe water. Masterline Safe Water provides a reliable, easy-to-use solution that protects your livestock and supports long-term tank stability.

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