Seachem

214 products

  • Last stock! Seachem Premier (1L)

    Seachem Premier (1L)

    Seachem Premier (1L) Seachem Premier is a highly concentrated water conditioner designed specifically for marine and reef aquariums. It safely removes chlorine, chloramine, and detoxifies ammonia, nitrite, and nitrate, making tap water immediately safe for marine fish, corals, and invertebrates. Premier also detoxifies heavy metals found in tap water and is ideal for use during water changes, new aquarium setups, or emergency situations involving elevated ammonia levels. Features & Benefits: Removes chlorine and chloramine Detoxifies ammonia, nitrite, and nitrate Detoxifies heavy metals in tap water Safe for fish, corals, and invertebrates Ideal for marine and reef aquariums Highly concentrated formula for economical use Trusted quality by Seachem Available Size: Premier – 1L For marine and reef aquariums only. Use as directed. Can be used during water changes or in emergency detoxification situations to protect aquarium inhabitants.

    R 512.00

  • Last stock! Seachem Marine Buffer (1kg)

    Seachem Marine Buffer (1kg)

    Seachem Marine Buffer (1kg) Seachem Marine Buffer is a specialized buffering system designed to safely raise and stabilize pH in marine and reef aquariums. It adjusts pH to the ideal marine range (8.3) while increasing alkalinity, helping to create a stable environment for fish, corals, and invertebrates. Unlike simple buffers, Marine Buffer is formulated so it will not affect calcium or magnesium levels, making it safe for long-term use in reef systems. Features & Benefits: Raises and stabilizes marine pH to 8.3 Increases alkalinity for improved buffering capacity Does not affect calcium or magnesium levels Helps maintain stable marine water chemistry Ideal for marine and reef aquariums Suitable for regular maintenance and corrections Trusted quality by Seachem Available Size: Marine Buffer – 1kg For marine aquariums only. Use as directed. Regular testing of pH and alkalinity is recommended for best results.

    R 486.00

  • Last stock! Seachem Flourite (3.5kg - 7kg) Seachem Flourite (3.5kg - 7kg)

    Seachem Flourite (3.5kg - 7kg)

    Seachem Flourite (3.5kg / 7kg) Seachem Flourite is a premium clay-based substrate designed specifically for planted aquariums. It provides a stable, nutrient-rich foundation for root development, promoting healthy growth for aquatic plants without altering water chemistry. Ideal for long-term planted tanks, Flourite supports strong root systems and vibrant plant coloration while remaining inert and safe for fish, shrimp, and invertebrates. Features & Benefits: Nutrient-rich clay substrate for planted aquariums Supports healthy root development and plant growth Does not alter water chemistry Ideal for long-term planted tanks Safe for fish, shrimp, and other invertebrates Trusted quality by Seachem Available Sizes: Flourite – 3.5kg Flourite – 7kg For freshwater aquariums only. Rinse thoroughly before use. Best used as part of a complete planted aquarium setup.

    R 421.00 - R 754.00

  • Last stock! Seachem Flourish Potassium (100ml - 500ml) Seachem Flourish Potassium (100ml - 500ml)

    Seachem Flourish Potassium (100ml - 500ml)

    Seachem Flourish Potassium (100ml / 250ml / 500ml) Seachem Flourish Potassium is a concentrated potassium supplement for freshwater planted aquariums. Potassium is a vital macronutrient that supports strong plant growth, improved leaf development, and overall plant health. This supplement helps prevent potassium deficiency, which can cause yellowing leaves, weak stems, and poor growth, especially in high-light or heavily planted aquariums. Features & Benefits: Concentrated potassium supplement for aquatic plants Helps prevent and correct potassium deficiency Supports strong growth and healthy leaf development Ideal for heavily planted and high-light aquariums Safe for fish, shrimp, and other invertebrates Trusted quality by Seachem Available Sizes: Flourish Potassium – 100ml Flourish Potassium – 250ml Flourish Potassium – 500ml For freshwater aquariums only. Use as directed. Best used as part of a complete plant fertilization program.

    R 171.00 - R 381.00

  • Last stock! Seachem Flourish Phosphorus (100ml - 500ml) Seachem Flourish Phosphorus (100ml - 500ml)

    Seachem Flourish Phosphorus (100ml - 500ml)

    Seachem Flourish Phosphorus (100ml / 250ml / 500ml) Seachem Flourish Phosphorus is a concentrated phosphorus supplement for freshwater planted aquariums. It helps prevent and correct phosphorus deficiency, supporting healthy plant growth, strong roots, and improved overall plant vitality. Phosphorus is an essential macronutrient required for energy transfer and growth, especially in heavily planted or high-light aquariums. Features & Benefits: Concentrated phosphorus supplement for aquatic plants Helps prevent and correct phosphorus deficiency Supports healthy growth and plant vitality Ideal for heavily planted and high-light aquariums Suitable for freshwater planted aquariums Trusted quality by Seachem Available Sizes: Flourish Phosphorus – 100ml Flourish Phosphorus – 250ml Flourish Phosphorus – 500ml For freshwater aquariums only. Use as directed. Best used as part of a complete fertilization program.

    R 171.00 - R 381.00

  • Seachem Betta – 30g

    Seachem Betta – 30g

    Seachem Betta – 30g Seachem Betta is a premium staple food formulated specifically for Betta fish. Made with high-quality ingredients, it provides optimal nutrition to support vibrant coloration, strong immunity, and overall health. The carefully sized pellets are designed for easy consumption and digestion, helping reduce waste and maintain better water quality in Betta aquariums. Features & Benefits: Complete daily diet for Betta fish High-quality ingredients for optimal nutrition Supports vibrant color and overall health Easily digestible to reduce waste Suitable for Betta bowls and aquariums Trusted quality by Seachem Size: 30g Feed small amounts once or twice daily. Remove uneaten food.

    R 120.00

  • Last stock! Seachem Flourish Nitrogen (100ml - 500ml) Seachem Flourish Nitrogen (100ml - 500ml)

    Seachem Flourish Nitrogen (100ml - 500ml)

    Seachem Flourish Nitrogen (100ml / 250ml / 500ml) Seachem Flourish Nitrogen is a concentrated nitrogen supplement for freshwater planted aquariums. It provides nitrogen in both nitrate and ammonium forms, making it readily available for plant uptake and helping prevent nitrogen deficiency. Nitrogen is a key macronutrient required for healthy leaf growth and overall plant development, especially in heavily planted or high-light aquariums. Features & Benefits: Concentrated nitrogen supplement for aquatic plants Provides nitrogen in multiple bioavailable forms Helps prevent and correct nitrogen deficiency Supports healthy leaf growth and plant development Ideal for heavily planted and high-light aquariums Suitable for freshwater planted aquariums Trusted quality by Seachem Available Sizes: Flourish Nitrogen – 100ml Flourish Nitrogen – 250ml Flourish Nitrogen – 500ml For freshwater aquariums only. Use as directed. Best used as part of a complete fertilization program.

    R 171.00 - R 381.00

  • Last stock! Seachem Flourish Tabs – 10 Pack Seachem Flourish Tabs – 10 Pack

    Seachem Flourish Tabs – 10 Pack

    Seachem Flourish Tabs – 10 Pack Seachem Flourish Tabs are nutrient-rich root tabs designed to provide essential elements directly to the root zone of aquatic plants. Ideal for heavy root feeders such as swords, crypts, and lotus, they help promote strong root development and healthy, sustained plant growth. Each tab is formulated to supply a balanced blend of trace elements, vitamins, and minerals, making them perfect for planted aquariums with gravel or sand substrates. Features & Benefits: Nutrient-rich root tabs for planted aquariums Feeds plants directly at the root zone Ideal for heavy root-feeding plants Supports strong root development and healthy growth Long-lasting nutrient release Suitable for freshwater planted aquariums Trusted quality by Seachem Pack Size: 10 Tabs Insert tabs into the substrate near plant roots. Use as directed.

    R 302.00

  • Seachem Flourish (100ml - 2L) Seachem Flourish (100ml - 2L)

    Seachem Flourish (100ml - 2L)

    Seachem Flourish (100ml / 250ml / 500ml / 2L) Seachem Flourish is a comprehensive plant supplement designed to support healthy growth in freshwater planted aquariums. It provides a wide range of essential trace elements, minerals, and nutrients needed by aquatic plants, without containing nitrogen or phosphorus. Ideal for use alongside macronutrient fertilizers, Flourish helps improve plant vitality, coloration, and long-term health in planted tanks. Features & Benefits: Comprehensive supplement for freshwater aquatic plants Provides essential trace elements and minerals Does not contain nitrogen or phosphorus Supports healthy growth and vibrant plant coloration Suitable for all freshwater planted aquariums Trusted quality by Seachem Available Sizes: Flourish – 100ml Flourish – 250ml Flourish – 500ml Flourish – 2L Suitable for freshwater aquariums. Use as directed. Best used as part of a complete plant fertilization program.

    R 171.00 - R 1,305.00

  • Last stock! Seachem Zip Bag (Small - Large) Seachem Zip Bag (Small - Large)

    Seachem Zip Bag (Small - Large)

    Seachem Zip Bag (Small / Medium / Large) The Seachem Zip Bag is a durable, reusable mesh bag designed to hold filtration media securely in aquarium filters. Its fine mesh allows excellent water flow while keeping media contained, making it ideal for use with carbon, resins, phosphate removers, and other filter materials. Built with strong welded seams and a corrosion-resistant zipper, the Zip Bag is suitable for both freshwater and marine aquariums. Features & Benefits: Fine mesh for maximum water flow Securely holds filtration media Durable, reusable construction Welded seams for added strength Corrosion-resistant zipper closure Suitable for freshwater and marine aquariums Quality product by Seachem Available Sizes: Small (Sm) Medium (Md) Large (Lg) Ideal for use in canister filters, sumps, and hang-on-back filters. Rinse before first use.

    R 105.00 - R 236.00

  • Last stock! The Bag – Seachem The Bag – Seachem

    The Bag – Seachem

    The Bag – Seachem The Bag™ by Seachem is a durable, fine-mesh media bag designed for holding filtration media in aquariums. Made from welded, solvent-resistant seams, it is strong enough for repeated use and suitable for both freshwater and marine systems. The fine mesh allows maximum water flow while securely containing media such as carbon, resins, phosphate removers, and other filter materials. A convenient corrosion-resistant zipper makes filling, emptying, and cleaning quick and easy. Features & Benefits: Fine mesh for excellent water flow Securely holds filtration media Durable, reusable construction Welded seams for added strength Corrosion-resistant zipper Suitable for freshwater and marine aquariums Quality product by Seachem Ideal for use in canister filters, sumps, and hang-on-back filters. Rinse before first use.

    R 326.00

  • Last stock! Seachem Acid Buffer- Ph stabilizer Seachem Acid Buffer- Ph stabilizer

    Seachem Acid Buffer- Ph stabilizer

    Acid Buffer  An acid buffer is a product used to lower and help stabilise the pH of aquarium water. It’s especially useful if your tank water is naturally too alkaline (high pH) for the fish or plants you’re keeping. In many cases it’s used together with an alkaline buffer to set and maintain a specific pH range that’s right for your setup. What It Does It lowers pH by buffering your water; this means it helps resist sudden pH changes once adjusted. In products like Seachem Acid Buffer, it also converts carbonate hardness (KH) into plant‑available CO₂, which can benefit planted freshwater tanks. Works best when matched with an alkaline buffer (like Seachem Alkaline Buffer) to dial in a target pH range without big swings. Most acid buffers are phosphate‑free, so they won’t promote algae growth.  Where It’s Used Freshwater planted aquariums with hard, high‑pH waterTanks where a specific lower pH range is desiredAs part of a pH adjustment routine during water changes  How To Use Start with small doses and test the water before and after adding the buffer. Follow the dosing on the label - for example, many products suggest ~2 g per ~80 L of water as a starting point. If using with an alkaline buffer, you can target specific pH ranges by adjusting the ratio of the two. Alternatives & Related Products Aqua Clean Acid Drop Buffer – another acid buffer option for lowering pH. Waterlife Ph 7.2 Acid Buffer – buffer aimed at a specific target around pH 7.2. Seachem Acid Regulator 1Kilo – similar purpose for general pH lowering. API pH Down – liquid alternative to powder buffers. Essentials Lab Buffer 7 1L – liquid buffer solutions for precise pH adjustment. Support products like Seachem Neutral Regulator help set pH to neutral (around 7) when used with both acid and alkaline buffers.  Tips  Always test your water (KH & pH) before adjusting. Make changes gradually -large pH jumps can stress fish.

    R 151.00 - R 258.00

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