Seachem MatrixCarbon 100 ml–1 L
Description
Seachem MatrixCarbon is a premium dual‑action filtration media that combines the high adsorption capacity of activated carbon with the biological support of Seachem Matrix. It effectively removes organic wastes, odors, discoloration, and toxins while also providing superior surface area for beneficial bacterial colonization. Suitable for both freshwater and marine aquariums, MatrixCarbon helps maintain crystal‑clear water and healthy biological filtration in a single media.
Key Features
Combines activated carbon adsorption with Matrix biological support
Removes odors, discoloration, and organic contaminants
Provides a large surface area for beneficial bacteria
Suitable for freshwater and marine aquariums
Available in sizes from 100 ml to 1 L
Easy to use in media bags, reactors, or filter chambers
Benefits
Keeps aquarium water clear and free of discoloration
Helps eliminate odors and dissolved organic wastes
Enhances biological filtration for stable water chemistry
Reduces maintenance by combining two media functions
Versatile use in different filtration setups
Usage
Rinse lightly before use to remove dust
Place MatrixCarbon in a filter media bag, reactor, or media tray
Position in high‑flow area of filter for best results
Replace or regenerate according to carbon exhaustion or water quality changes
Monitor water clarity and chemistry to determine service life
Use in both freshwater and marine aquarium systems for optimal filtration
Seachem DeNitrate 250–500ml
Description
Seachem De*Nitrate is a highly effective liquid filter media designed to reduce both nitrate and phosphate levels in freshwater aquariums. It works by binding nitrate and phosphate into a form that can be easily removed by mechanical filtration, helping to control algae growth and maintain clearer, healthier water. De*Nitrate is suitable for both aquariums and ponds and is especially useful in systems where other nutrient‑reducing methods are needed to improve water quality and prevent nuisance algae.
Key Features
Reduces nitrate and phosphate levels in freshwater aquariums
Binds nutrients into a removable form
Helps control algae growth
Liquid media for easy dosing
Suitable for aquariums and ponds
Works well with mechanical filtration
Benefits
Helps maintain lower nitrate and phosphate levels for healthier water
Reduces algae outbreaks by limiting nutrients
Supports clearer, more stable aquarium conditions
Easy to use liquid formula
Useful in heavily stocked or planted systems needing nutrient control
Usage
Shake well before use
Add 5 ml per 40 L of aquarium water initially
Repeat dosing every 24 hours until desired nutrient levels are reached
Once levels are under control, dose 2.5 ml per 40 L daily or as needed
Monitor nitrate and phosphate levels regularly to adjust dosing
Use with mechanical filtration to remove bound nutrients from the system
Seachem Onyx Sand 7kg
Description
Seachem Onyx Sand is a premium, deep‑black aquarium substrate ideal for creating high‑contrast, visually striking freshwater tanks. Its fine, natural grains provide a sleek and dramatic foundation that enhances the appearance of fish and décor. Aquarium‑ready and easy to rinse, Onyx Sand offers a stable base suitable for both planted and community aquariums.
Key Features
Fine black sand substrate
Deep, uniform black color for dramatic aquarium contrast
Easy to rinse and aquarium‑ready
Stable foundation for décor, fish, and plants
Suitable for freshwater aquariums
Benefits
Enhances visual appeal with a clean, bold black substrate
Provides a smooth, natural base for aquatic setups
Helps maintain clearer water with minimal residual dust
Suitable for a range of aquarium styles, from planted to community tanks
Long‑lasting and low maintenance
Usage
Rinse Seachem Onyx Sand thoroughly with clean water before use
Spread evenly across the aquarium bottom
Use a depth of 2–3 inches (5–7 cm) depending on setup needs
Place décor, rocks, or plants as desired
Add water slowly to avoid disturbing the sand
Perform gentle vacuuming during maintenance to keep sand clean
Seachem Fluorite Red 3.5–7kg
Description
Seachem Fluorite Red is a premium aquarium substrate specially formulated for freshwater planted tanks. Its rich red and earthy tones create a stunning visual backdrop that enhances plant colors and fish contrast. The porous clay structure promotes beneficial bacterial growth and supports strong root establishment, making it ideal for long‑term plant health and overall aquarium stability. Fluorite Red is easy to rinse and aquarium‑ready for immediate use.
Key Features
Porous clay gravel substrate
Rich red and earthy color tones
Promotes strong plant root growth
Supports beneficial bacterial colonization
Easy to rinse and aquarium‑ready
Designed for freshwater planted aquariums
Benefits
Adds vibrant, eye‑catching aesthetics to planted tanks
Encourages healthy plant root development
Enhances biological filtration with porous structure
Helps maintain stable, healthy aquarium conditions
Long‑lasting substrate with minimal water cloudiness after rinsing
Usage
Rinse Fluorite Red thoroughly with clean water before use
Spread evenly across the aquarium bottom
Use a depth of 2–3 inches (5–7 cm) for planted aquarium setups
Position plants and add appropriate root tabs or fertilizers as needed
Add water slowly over a plate or dish to avoid disturbing substrate
Perform routine gentle vacuuming to maintain cleanliness
Seachem Flourite Dark 3.5–7kg
Description
Seachem Flourite Dark is a high‑quality, porous clay gravel substrate designed for planted freshwater aquariums. Its rich, natural dark tones provide an attractive contrast that enhances the appearance of plants and fish. The porous structure promotes beneficial bacterial colonization and supports strong root development, helping establish and maintain a healthy, thriving aquatic environment. Flourite Dark is easy to rinse and aquarium‑ready, making it suitable for both new setups and aquascaping projects.
Key Features
Porous clay gravel substrate ideal for planted tanks
Rich dark color for enhanced aquarium aesthetics
Promotes strong plant root growth
Supports beneficial bacterial colonization
Easy to rinse and aquarium‑ready
Suitable for freshwater planted aquariums
Benefits
Creates a visually striking foundation in aquarium setups
Encourages healthy plant growth and root development
Enhances biological filtration with its porous composition
Helps maintain stable, healthy aquarium conditions
Long‑lasting substrate with minimal cloudiness after rinsing
Usage
Rinse Flourite Dark thoroughly with clean water before use
Spread evenly across the aquarium bottom
Use a depth of 2–3 inches (5–7 cm) for planted aquarium setups
Position plants and add appropriate root tabs or fertilizers as needed
Add water slowly to avoid disturbing the substrate
Perform routine gentle vacuuming to maintain cleanliness without disrupting roots
Seachem Flourite Black 3.5kg–7kg
Description
Seachem Flourite Black is a premium, porous clay gravel specifically designed for planted aquariums. Its rich black color enhances the natural beauty of aquatic plants and fish while providing an optimal substrate that promotes strong root development. The unique porous structure supports beneficial bacterial colonization, helping to maintain healthy biological filtration. Flourite Black is easy to rinse and ideal for both freshwater and planted aquarium setups.
Key Features
Natural porous clay gravel substrate
Deep black color for dramatic contrast and visual appeal
Promotes strong plant root growth
Supports beneficial bacterial colonization
Easy to rinse and aquarium‑ready
Suitable for planted freshwater aquariums
Benefits
Enhances the look of planted tanks with rich, uniform black color
Provides a stable substrate that encourages vigorous plant growth
Improves biological filtration through porous structure
Helps maintain healthy aquarium conditions
Long‑lasting, non‑muddy gravel that won’t cloud water after rinsing
Usage
Rinse Flourite Black thoroughly with clean water before use
Spread substrate evenly across the aquarium bottom
Use a depth of 2–3 inches (5–7 cm) for planted aquariums
Position plants and add appropriate root tabs or fertilizers as needed
Perform regular maintenance with gentle vacuuming to avoid disturbing roots
Top up substrate during tank upgrades or plant rearrangements
Seachem Tanganyika Buffer 250g
Description
Seachem Tanganyika Buffer is designed to replicate the hard, alkaline water conditions of Lake Tanganyika, one of Africa’s great rift lakes. It raises and stabilizes pH and carbonate hardness (kH) to create an optimal environment for Tanganyikan cichlids and other alkaline‑water fish species. The carefully balanced buffering formula helps maintain stable water chemistry, reducing stress on fish and supporting overall health and performance.
Key Features
Raises pH to the alkaline range ideal for Tanganyika‑dwelling fish
Increases carbonate hardness (kH) for stable buffering
Mimics natural Lake Tanganyika water conditions
Designed specifically for freshwater aquariums
Easy‑to‑use granular formula
Helps provide long‑term pH stability
Benefits
Creates ideal water chemistry for Tanganyikan cichlids and similar species
Reduces pH swings that can stress fish
Improves overall fish health and coloration
Helps maintain consistent aquarium conditions
Easy to use for routine water adjustments
Usage
Use 1 level teaspoon (~5 g) per 40–80 L of aquarium water
Dissolve in replacement water before adding to the tank when possible
Adjust dosage gradually until desired pH and kH are reached
Once target conditions are achieved, maintain during water changes or as needed
Monitor pH and carbonate hardness regularly to ensure stability
Seachem Malawi Victoria Buffer 300–600g
Description
Seachem Malawi/Victoria Buffer is a specialized water conditioner designed to create and maintain the ideal alkaline and hard water conditions found in the natural habitats of Malawi and Victoria cichlids. It raises pH and increases carbonate hardness (kH) to help establish a stable, mineral‑rich environment that supports the health, color, and breeding potential of African cichlids. The formula contains phosphate and carbonate buffers that help maintain long‑term pH stability while supporting optimal water chemistry for species that thrive in hard, alkaline water.
Key Features
Raises and stabilizes pH in alkaline range suitable for Malawi & Victoria cichlids
Increases carbonate hardness (kH) for stable water buffering
Contains phosphate and carbonate buffering agents
Helps mimic natural lake water conditions
Ideal for African cichlid aquariums
Available in sizes to suit various aquarium volumes
Benefits
Creates and maintains optimal water conditions for Malawi and Victoria cichlids
Reduces pH fluctuations to minimize fish stress
Enhances long‑term water stability and clarity
Supports vibrant coloration and overall fish health
Helps provide an environment conducive to breeding
Usage
Use 5 g (about 1 level teaspoon) per 40–80 L of aquarium water to raise pH and kH
Dissolve in replacement water before adding to the aquarium for best results
Adjust dosage gradually until desired pH and kH are achieved
Once target conditions are reached, dose periodically during water changes to maintain stability
Monitor pH and carbonate hardness regularly to ensure consistent water chemistry
Seachem Alkaline Regulator 250g
Description
Seachem Alkaline Regulator is a freshwater aquarium buffer designed to raise and stabilize pH within the alkaline range of 7.1–7.6. It helps create the ideal environment for fish species that prefer alkaline water conditions, such as many rainbowfish and African cichlids. The formula contains phosphate buffers and conditioning agents that maintain stable water chemistry, helping aquarists safely adjust pH levels while supporting a healthy aquarium ecosystem.
Key Features
Raises and stabilizes pH in the alkaline range (7.1–7.6)
Supports fish species that thrive in alkaline water conditions
Contains phosphate buffers for stable pH control
Helps create a balanced freshwater aquarium environment
Can be used with Neutral Regulator to target a specific pH
Safe for freshwater fish adapted to alkaline water
Benefits
Creates optimal water conditions for alkaline-loving fish
Helps maintain stable pH levels to reduce fish stress
Improves overall water chemistry stability
Provides precise pH control when used with other regulators
Supports healthier and more stable freshwater aquariums
Usage
Use 1 level teaspoon (about 5 g) for every 40–80 L of aquarium water
Dose daily until the desired pH level is reached
Once the target pH is achieved, use monthly or during water changes to maintain stability
Dissolve in replacement water before adding to the aquarium when possible
Monitor pH regularly to ensure stable water parameters
Seachem Cupramine 50–500ml
Description
Seachem Cupramine is a highly effective copper-based medication designed to treat a wide range of external fish parasites in marine and freshwater aquariums. Using a unique buffered copper formula, Cupramine is safer for fish than traditional ionic copper treatments while still delivering powerful parasite control. It effectively treats diseases such as ich, velvet, and other external infestations while remaining stable and easy to monitor with copper test kits.
Key Features
Highly effective copper-based parasite treatment
Safe, buffered copper formula for improved fish tolerance
Effective against ich, velvet, and other external parasites
Suitable for both freshwater and marine aquariums
Easy to monitor with copper test kits
Does not contaminate the aquarium permanently when removed with chemical filtration
Benefits
Rapidly treats common and harmful fish parasites
Safer for fish compared to many traditional copper medications
Helps restore fish health and reduce parasite-related stress
Reliable and stable treatment for quarantine or hospital tanks
Trusted solution for maintaining healthier fish during disease outbreaks
Usage
Remove any chemical filtration such as carbon before dosing
Dose according to the aquarium volume as directed on the product label
Treat the aquarium or quarantine tank over the recommended treatment period
Monitor copper levels using a reliable copper test kit
Do not use in aquariums containing invertebrates or corals
After treatment, remove medication using activated carbon and perform water changes
Seachem Impulse 400–800 Water Pump
Description
The Seachem Impulse 400–800 is a quiet, energy-efficient multi-function water pump designed for both freshwater and marine aquariums. Built with a durable synchronous motor and advanced impeller design, it provides reliable water movement for aquariums, sumps, reactors, and protein skimmers. The pump can be used either submerged or inline, offering flexible installation for a wide range of aquarium setups. Adjustable flow control allows you to easily set the ideal water flow for your system.
Key Features
Multi-function aquarium pump suitable for freshwater and marine systems
Adjustable flow control for precise water movement
Can be used submerged or as an inline pump
Energy-efficient and ultra-quiet operation
Durable synchronous motor with advanced impeller design
Ceramic shaft and bearings for long-lasting performance
Includes multi-size hose adapters and suction cups for easy installation
Benefits
Provides reliable water circulation for healthier aquariums
Flexible installation options for different filtration setups
Quiet operation ideal for home or office aquariums
Adjustable flow allows customization for different tank sizes
Durable components ensure long service life
Usage
Install the pump fully submerged in the aquarium or sump, or use inline with compatible tubing
Attach the appropriate hose adapter for your plumbing setup
Secure the pump using the included suction cups if using submerged
Adjust the flow control to achieve the desired water movement
Use for applications such as filtration systems, reactors, protein skimmers, or water circulation in aquariums and ponds
Seachem U Tube
Improve your CO₂ or airline setup with the Seachem U Tube — a clear, high‑quality glass U‑shaped tube designed to let tubing pass over your aquarium rim without bending or kinking. It’s a simple but essential piece of glassware for planted and reef systems that helps keep your tubing neat and safe while enhancing gas flow reliability.
Key Features
Strong, clear glass U‑tube for elegant looks and minimal visibility in your tank
Allows airline or CO₂ tubing to run over the rim without bending or creasing
Compatible with standard 6 mm / 1/4″ silicone tubing
Available in both 10 mm and 20 mm widths to fit rimless and rimmed tank designs
Benefits
✅ Keeps CO₂ and airline tubing straight and kink‑free✅ Helps maintain consistent gas flow for healthier plants or air delivery✅ Sleek glass design that blends into your aquascape✅ Easy to install and reposition as needed✅ Works with both CO₂ systems and air pumps
Why Consider a Seachem U Tube
Ideal if you want a professional‑looking CO₂ setup
Great for reducing stress on tubing that can kink over the tank rim
Helps extend the life of tubing by preventing sharp bends
A useful addition for planted and high‑tech aquariums
Instructions for Use
Rinse the glass U Tube with warm water before first use.
Trim a piece of 6 mm (1/4″) silicone tubing to the desired length.
Wet the end of the tubing and gently slide it over the glass ends.
Hang the U Tube over the rim of your aquarium at the desired position.
Connect the other end of the tubing to your CO₂ or airline system and check for straight, unobstructed airflow.