Water Conditioners for Aquariums

If you’re not using a water purifier, like a RO system (and you should), then an aquarium water conditioner is a must for most freshwater fish tanks. Most tap water is treated with toxic chlorine and chloramine, which burns fish gills. Prime water conditioner, a popular choice, will remove those toxins. A water conditioner for fish may also promote fish health by repairing the fish’s slime coat, which wards off infection. While the best strategy is to use a reverse osmosis water purification system, a water conditioner will keep your freshwater fish safe from harm.

We do not recommend a water conditioner for most saltwater setups, because a) saltwater really benefits from purified water, and b) water conditioners make protein skimmers skim excessively.
37 Results
Ammonium Chloride Solution for Fishless Cycling 4oz - Dr. Tim's Aquatics
20%
off

Ammonium Chloride Solution for Fishless Cycling 4oz - Dr. Tim's Aquatics

API Tap Water Conditioner 16oz

API Tap Water Conditioner 16oz

Ocean Nutrition Atisons Betta SPA 125ml
15%
off

Ocean Nutrition Atisons Betta SPA 125ml

Kent Marine A F Cichlid Buffer 250grams
15%
off

Kent Marine A F Cichlid Buffer 250grams

Seachem Laboratories Stress Guard - 500mL

Seachem Laboratories Stress Guard - 500mL

Kent Marine Discus Essential 16 oz.
15%
off

Kent Marine Discus Essential 16 oz.

ShrimpPrep Freshwater Tank Detoxifier - 250 ml - Brightwell Aquatics
20%
off

ShrimpPrep Freshwater Tank Detoxifier - 250 ml - Brightwell Aquatics

Tap Water Conditioner (8 oz.) - API

Tap Water Conditioner (8 oz.) - API

Kordon Amquel Plus +®  Additive - 1gal
15%
off

Kordon Amquel Plus +® Additive - 1gal

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