Water Conditioners & Test Kits

Seachem Gold Trace is a trace-element supplement for goldfish, supplied in a 500 mL (16.9 fl oz) bottle to replenish elements demonstrated to be necessary for fish health and growth. Broad range of trace elements for goldfish — supplies elements demonstrated to be necessary...

Seachem Reef Trace Elements is a 500 ml supplement for reef aquariums, made to replenish a broad range of trace elements that support reef health and growth. Broad range of trace elements — supports the needs of marine life in reef systems. 500 ml...

Seachem Reef Zooplankton is a reef-focused zooplankton product for reef aquarium routines, supplied in a 250 mL (8.5 fl. oz.) size and made in the United States. 250 mL (8.5 fl. oz.) size — provides a clearly stated quantity for choosing a product. Reef...

Brightwell Aquatics ShrimpCōde is a 250 ml copper-free mineral and trace-element supplement for freshwater shrimp, crustaceans and riverine fish, formulated to replenish essential elements in aquarium water. Copper-free formula — made for freshwater shrimp, including delicate species. Trace and minor elements — provide minerals...

Seachem Matrix is porous inorganic aquarium biomedia designed to help remove nitrogenous waste, with particles about 10 mm (0.39 in) in diameter in a 500 mL (17 oz) size. More than about 700 m² of surface per liter, comparable to 170 liters of plastic...

Seachem HyperSorb 100 mL Bagged is a synthetic aquarium adsorbent designed to remove organic waste and pollutants, with a progressive color change that signals when the media is becoming exhausted. High-capacity organic waste removal — helps remove organic matter, toxic vapors, and other pollutants...

Brightwell Aquatics Zooplanktōs-M is a concentrated zooplankton food supplement for marine and reef aquariums, with 500–1,000 µm copepods in a 250 ml suspension. Copepods sized 500–1,000 µm — suited to small- and large-polyp stony corals and other plankton feeders. Amino acids, omega-3 fatty acids...

The Salifert Dissolved Oxygen Test Kit measures oxygen in aquarium and pond water across a 2–14 mg/L range, helping you monitor conditions for fish and corals. Provides up to 40 tests — check water oxygen levels regularly. Designed to give a result in a...

BEEJO Fish Tank Magnetic Glass Cleaner with Digital Aquarium Thermometer combines glass-scrubbing pads and an LED temperature display for 1–30 gallon glass aquariums with 4–10 mm (≤1/2 in) glass. Integrated magnetic cleaner and digital thermometer — clean tank glass and check temperature with one...

BEEJO Aquarium Magnetic Glass Cleaner with Digital Fish Tank Thermometer combines magnetic glass cleaning with an LED temperature display for glass aquariums, measuring from 0–99°F (-17.8–37.2°C). Fits glass 4–10 mm thick (≤1/2 in) — choose it for tanks within this glass thickness range. Designed...

Aqueon PURE is a live nitrifying bacteria and enzyme supplement for maintaining aquarium balance, supplied as 24 easy-to-dose gel balls for 10-gallon tanks. 24-count pack for 10-gallon aquarium dosing — keep a supply on hand for routine use. One gel ball per 10 gallons...

Pawfly 100 Pcs Aquarium Test Strips are refill strips for monitoring six key water parameters in freshwater, saltwater, reef, and breeding aquariums, with results compared against a color chart. 100 test strips — supports regular aquarium water checks. Tests six parameters — monitors pH,...

Seachem Nourish is a vitamin, amino acid, and trace element supplement for freshwater ornamental fish, supplied in a 250 mL (8.5 fl oz) size. Comprehensive vitamin, amino acid, and trace element supplement — addresses nutritional requirements associated with long-term closed-system housing. Potassium iodide provides...

Seachem SeaGel is a 50/50 blend of MatrixCarbon and PhosGuard aquarium media, made to remove a range of unwanted water impurities in a 250 mL (15 cu.in.) size. Equal parts MatrixCarbon and PhosGuard — combines two media in one blend. MatrixCarbon removes organic and...

DORHEA digital aquarium thermometers help you check tank temperature from outside the glass, with a touch-activated LED display and a 32–140°F (0–60°C) measuring range. Three digital thermometers — keep a temperature display available for multiple tanks or enclosures. 32–140°F (0–60°C) range and 0.9°F (0.5°C)...

DrTim’s Aquatics Re-Fresh Freshwater is a freshwater aquarium treatment designed to help clear green or brown water and reduce organics in a 4 oz format. For green or brown freshwater aquarium water — helps restore a clear appearance. Reduces organics — supports cleaner aquarium...

Seachem Cichlid Trace is a trace product for cichlids, supplied in a 250 mL (8.5 fl oz) size. Made for cichlids — a cichlid-focused trace product. 250 mL (8.5 fl oz) size — identifies the quantity in this product. Seachem Cichlid Trace is for...