Fish & Aquatic Aquarium Water Treatments
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Overview Seachem Flourish Potassium 250ml delivers a high-concentration source of potassium (50,000 mg/L) designed for natural freshwater aquariums with actively growing aquatic plants. Potassium is one of several elements essential to maintaining vigorous growth in a planted tank, and even with mineral-rich source water,...
- £21.50
- £21.50
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Effortless turtle tank care Meet Zilla Turtle Miracle Ball, a smart water-care solution designed for aquatic reptiles. The gel ball houses a fast-acting bio boost formula that works in tanks up to 50 gallons or directly in your filter. Best of all, your turtle...
- £24.06
- £24.06
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OverviewFluval Cycle Biological Enhancer is a fast-acting biological supplement designed to jump-start a healthy biofilter by introducing a robust team of beneficial bacteria into your aquarium water. The formula emphasizes all-natural water care to help create a safe biological habitat for your fish, supporting...
- £23.80
- £23.80
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Overview Seachem Prime is a complete, concentrated water conditioner designed for both freshwater and saltwater tanks. Built on decades of science and real-world hobbyist experience, Prime helps you prepare tap water for aquarium use while supporting a stable environment for your fish. Seachem is...
- £21.19
- £21.19
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Overview Seachem Equilibrium 300 gram is a mineral blend designed to help planted aquariums reach the right mineral content for healthy plant growth and stable water chemistry. When added to the aquarium, the product can produce a faint hazy moment that typically clears within...
- £23.18
- £23.18
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MATCHIMAA Premium Indian Almond Leaves are a natural, ingredient-free decor and habitat enhancement for tropical freshwater aquariums. Carefully selected from fallen leaves and subjected to washing, boiling, and drying, these leaves arrive in sealed zip bags to preserve freshness. Each pack contains 50g, typically...
- £23.03
- £23.03
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New aquariums often face ammonia and nitrite buildup from fish waste, which can stress aquatic life and complicate setup. API Quick Start brings patented nitrifying bacteria to your tank, designed to help establish the beneficial cycling process more quickly. While results can vary, the...
- £20.67
- £20.67
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Seachem Flourish Excel 500 ml is a fast-acting source of bioavailable organic carbon designed for planted aquariums. Built on a science-first foundation, this product speaks to hobbyists who value reliable, plant-friendly solutions that fit real-world tanks and routines. In freshwater aquariums, carbon is a...
- £22.81
- £22.81
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SunGrow 10 Pack Axolotl Indian Almond Leaves Each leaf is around 8-9 inches, hand-picked and dried to preserve natural compounds that support a calm, natural habitat for axolotls and other aquatic life. In the tank, you may notice a tea-like tint as the leaves...
- £21.99
- £21.99
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API Stress Coat Freshwater Aquarium Water Conditioner Tap water often contains chlorine, chloramines, and trace ammonia that can irritate fish and disrupt their comfort in a new or changing tank. API Stress Coat offers a thoughtful, dual-action formula designed to render tap water aquarium-safe...
- £23.03
- £23.03
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Overview Keep your freshwater aquarium looking its best with API ACCU-CLEAR Freshwater Aquarium Water Clarifier. This compact 8-ounce bottle targets the tiny, floating particles that can cloud water after gravel disturbance or routine maintenance. By encouraging these particles to clump into larger clusters, ACCU-CLEAR...
- £21.49
- £21.49
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Overview Keep your freshwater aquarium looking vibrant with API ALGAEFIX Algae Control. This 4-ounce bottle is designed to help manage common algae challenges so you can enjoy clearer water and nicer-looking glass, ornaments, and plants. With a legacy of almost 60 years, API offers...
- £20.78
- £20.78
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OverviewAPI STRESS ZYME Freshwater and Saltwater Aquarium Cleaning Solution helps create a naturally balanced tank by introducing beneficial bacteria. By targeting organic waste like fish waste, sludge, and uneaten food, it supports a cleaner tank and a steadier biological cycle that works alongside your...
- £22.58
- £22.58
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Aqueon Betta Bowl Plus Water Conditioner & Dechlorinator makes tap water safe for your fish and plants in moments. It is designed for smaller bowls and compact aquariums where filtration and circulation are limited, so you can enjoy a clean, clear setup without extra...
- £21.27
- £21.27
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Overview Seachem PolyGuard comes in a 10 g bottle (0.4 oz) and is designed for ornamental fish in freshwater and marine aquariums. For aquarium use only, keep away from children; it is not intended for human consumption or for animals raised for human consumption....
- £21.17
- £21.17
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Elevate your Malawi and Victoria tank’s water chemistrySeachem Malawi/Victoria Buffer 300g is a purpose-built buffering agent designed to help raise and stabilize water hardness in freshwater and brackish aquariums. In real-world setups it can support a steady mineral balance, which many hobbyists associate with...
- £23.45
- £23.45
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Seachem Neutral Regulator 250 g: Simple, reliable buffering for your aquarium Seachem Neutral Regulator 250 g is a crisp, powder based buffer designed to support steadier water chemistry in home aquariums. It aims to gently steer pH toward a stable range and maintain reliable...
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- £21.20
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Overview KORDON Rapid Cure Fast Acting Ich Treatment is designed for both freshwater and saltwater aquarium fish. It targets common symptoms associated with Ich infections, fin damage from protozoans, and external parasites. With a simple dosing guideline of 1 drop per gallon, many hobbyists...
- £20.94
- £20.94
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Seachem Flourish Freshwater Plant Supplement - Aquarium Element & Nutrient Blend, 100 ml (Model 515)OverviewSeachem Flourish Freshwater Plant Supplement is a versatile micro- and trace-element blend designed for natural freshwater aquariums. Rather than relying on a single macro-nutrient, Flourish focuses on the micronutrients plants use for metabolism, color, and growth. With regular use, you may notice more vibrant...
- £20.49
- £20.49
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Natural water conditioning and habitat enrichment with Tender Tropicals Indian Almond Leaves Discover the Tender Tropicals 80 piece pack of dried Catappa leaves, each leaf up to 4 inches, designed to bring a gentle, natural touch to freshwater tanks. These leaves are valued by...
- £20.98
- £20.98
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Fish & Aquatic Aquarium Water Treatments for UK pet owners — 302 products with free UK delivery. Browse the full range below; stock and prices update live.
Popular picks include Seachem Prime Fresh & Saltwater Conditioner – Chlorine &; Seachem Prime Fresh & Saltwater Conditioner 2 L – Chlori; Seachem Prime Water Conditioner 2 Liter – Safe Tap Water.
























