Fish & Aquatic Aquarium Water Treatments
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Overview Tropic Marin All-For-Reef Liquid 500 ml is a single, ready-to-use dosing solution that brings calcium and carbonate hardness together with a balanced mix of trace elements. It is designed to simplify reef-keeping by reducing the number of bottles and steps in daily maintenance....
- £37.05
- £37.05
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Harris Diatomaceous Earth Food Grade 5lb Meet a versatile, clean-powered powder designed for use in homes, gardens, and beyond. Harris sources freshwater diatomaceous earth from Nevada and packages the 5 lb bag in Georgia, delivering a straightforward, pure product with a long-standing brand legacy...
- £55.59
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SaltyShrimp Shrimp Mineral GH/KH+ 100g: Mineral-rich support for softwater shrimp In many freshwater tanks, the chemistry of the water shapes daily life for shrimp and other inhabitants. SaltyShrimp Shrimp Mineral GH/KH+ has been developed to mineralize RO water, rainwater, or fully desalinated water, creating...
- £32.27
- £32.27
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Overview SELSIL Aquarium Silicone Sealant Clear is a high-elasticity, solvent-free sealant designed for glass aquariums. It blends into transparent seams while remaining aquarium-friendly, with no harsh solvents that could affect fish or aquatic life. This two-pack delivers reliable coverage for tanks of various sizes,...
- £34.32
- £34.32
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Seachem Clarity 500ml is a practical water clarifier designed for both saltwater and freshwater aquariums. When hazy water mutes the colors of coral, fish, and aquatic plants, this product offers a measured approach to restoring visibility while keeping tank inhabitants safe. The result is...
- £33.12
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From the makers of Chemi-pure, Chemi-Clean 2 g Premium Pack is designed to tackle stubborn cyanobacteria stains in both fresh and saltwater aquariums. This premium additive treats up to 300 gallons and is suitable for display tanks, reefs, and nano setups alike.What you’ll notice...
- £32.78
- £32.78
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Clearer aquarium water can dramatically improve how you enjoy your tank. The API Accu-Clear Water Clarifier 3-Pack includes three 8-ounce bottles of proven formula designed to help suspended particles settle more quickly, helping you see your fish, plants, and decorations with greater clarity. The...
- £36.85
- £36.85
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Protect your corals with Coral Rx Dip Blue Ocean Corals Coral Rx Dip is designed with the health of your corals in mind. The proprietary blend of natural ingredients avoids common irritants like iodine and oxidizers, which can stain or stress coral tissue. This...
- £34.11
- £34.11
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DBDPet ReptiSafe Water Conditioner for Reptiles The first instant terrarium water conditioner from DBDPet, ReptiSafe is designed to streamline hydration in your reptile habitats. Whether you’re topping off a water bowl, feeding a chameleon drip line, or refreshing an amphibian enclosure, this formula works...
- £37.40
- £37.40
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Keep AquaTru performing at its best with the Descaling Kit Mineral buildup is a natural part of countertop water purification. The AquaTru Descaling Kit is designed for the Classic, Connect and Smart units, to address mineral scale and refresh internal pathways. Note that this...
- £32.28
- £32.28
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Overview AG Adhesive Guru presents Aquarium Silicone Sealant Clear in a convenient 2-pack of 10.5 fl oz tubes. This product is crafted from 100% silicone with no additives or fungicides, and it is solvent-free, aiming to be aquarium-safe for fish, plants, and decorations. The...
- £31.24
- £31.24
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Overview ATLRC4 Revive Coral Cleaner is a plant-extract surface cleaning dip designed for the gentle care of reef life. Developed by Julian Sprung and produced in the United States, this 16.8-ounce formula targets live stony and soft corals, zoanthids, and anemones. Rather than a...
- £32.27
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Easy, reliable algae control with Tetra No More Algae Tablets Keep your aquarium looking its best with a simple, dependable solution designed for busy hobbyists. Tetra No More Algae Tablets arrive as a 24‑tablet set, neatly divided into three packs of eight. The compact,...
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Premium aquatic substrate for thriving water gardens Omitgoter Aquatic Soil is a 100% natural clay-based substrate designed specifically for water plants, lotus, and aquarium landscapes. This nutrient-rich base blends earthy minerals with a gentle texture that helps root systems settle while keeping fish and...
- £46.36
- £46.36
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Seachem Alkaline Buffer 600g: pH and KH support for planted aquariums Maintaining stable water chemistry is essential for thriving aquatic plants and a visually appealing freshwater tank. Seachem Alkaline Buffer 600g is a non-phosphate buffer designed to raise pH and increase buffering capacity (KH)...
- £30.84
- £30.84
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Simple, effective care for freshwater fish Tetra Lifeguard is a broad-spectrum, non-antibiotic treatment designed to address disease signs at their earliest stages in freshwater fish. You do not need to be a fish expert to use Lifeguard, and with an all-in-one formula there is...
- £52.49
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EcoBio-Block Nano Aquarium Stone: a natural approach to tank cleanliness EcoBio-Block Nano Aquarium Stone offers a natural, hands-off way to keep small tanks clear and fresh. The stone is a volcanic rock embedded with beneficial bacteria; as it sits in your aquarium, colonies disperse...
- £27.62
- £27.62
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TankFirst Complete Aquarium Water Conditioner by Aquatic Experts TankFirst is designed to make tap water immediately safer for your aquarium. By neutralizing chlorine and chloramines and detoxifying ammonia, it helps you start with water that supports a stable, thriving environment for your fish, invertebrates,...
- £27.14
- £27.14
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Maintaining balance in a freshwater aquarium can feel like a daily balancing act. Aqueon PURE brings a blend of nitrifying live bacteria and enzymes that live on surfaces inside your tank—filter media, decor, gravel—ready to kick in when conditions allow. With weekly dosing, it...
- £26.11
- £26.11
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Overview Blue Life Green Cyano Rx is a focused addition to the Blue Life family, designed for aquarists who want a concise, purpose-built option to address cyanobacteria-related challenges in their tanks. The name itself signals a treatment mindset, offering a practical tool that fits...
- £30.22
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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.


















