Water quality is the most important aspect in keeping a healthy aquarium, which means testing your aquarium's water for pH, ammonia, and nitrites weekly an important part of your maintenance program.

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All Fritz Test Kits come with lab-grade liquid reagents for the most accurate testing possible Plastic Test Tubes stay crystal clear and won't break like other brands’ glass test tubes Easy to follow instructions Fritz Color Charts are easy-to-read, reducing human error & increasing the accuracy of the test

City water contains ammonia, but most ammonia in a tank comes from the breakdown of food, fish waste & decaying plants. When found in tap water, ammonia is a by-product of bonding ammonia and chlorine. Hobbyists using traditional dechlorinators claiming to detoxify chloramine are shocked when water changes cause the tank to become MORE TOXIC. This is because conventional conditioners perform chemical reactions which break the chloramine bond and detoxify chlorine, but most don’t affect the leftover toxic ammonia! Most ammonia removers make the water worse by adding formaldehyde- which is toxic to beneficial nitrifying bacteria. Fritz’s unique professional formula Ammonia Remover is both formaldehyde-free & phosphate-free, eliminating ammonia without creating a dangerous imbalance. When an unexpected ammonia spike occurs, add Fritz Ammonia Remover to instantly neutralize the toxin, allowing time for nitrifiers to replicate and naturally balance the tank. For best results, add Fritz Zyme™ #7 or #9 with nitrifying bacteria. Nitrifiers live in the filter permanently, replicating to a healthy level that automatically balances the water. Unlike chemical ammonia removers, Fritz Zyme™ requires only a one-time addition. The live bacteria then take root in the filter and continually manage aquarium water quality.

Test for ammonia every 2-3 weeks, except when tank does not appear to be in good shape, then test more often.

Each kit performs 100 tests

Nitrites are toxic and should be tested once every several days in a new tank and once per week in established aquariums. Nitrites are the result of the oxidation of ammonia by nitrifying bacteria in the biofilter. Many fish, including catfish, botias, koi and goldfish, are very sensitive to increased nitrite levels and are much more likely to get infections when the nitrite level rises. Left unchecked, nitrite levels can peak at greater than 2.0 ppm concentrations, causing the tank to “crash” and all the animals to die. The Fritz Nitrite Test Kit has a long shelf life and easy-to-read chart, ensuring long term accurate testing. Includes instructions on decreasing nitrite spikes.

Test for nitrites every 2 weeks, except when tank does not appear to be in good shape, then test more often.

Each kit performs 200 tests

High pH makes ammonia more toxic, increases fish stress, strips a fish’s protective slime coat, causes infections and FISH DEATH! Long-term, studies show that improper pH greatly decreases color and life span of fish. Adjust pH before adding fish. When performing water changes or topping off a tank, users should test their pH prior to adding new water. Aquarium water should be tested once every week to ensure the pH doesn’t drift out of balance. The pH preference of each species varies. The following pH ranges are recommended: 6.5 - 6.8 South American fish: Tetras, Discus, other Egg-Layers.

Each kit performs 250 tests

Test pH every week.

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6.8 - 7.2 Mixed, Tropical Community Aquariums 7.2 - 7.6 Goldfish, Livebearing Fish 7.4 - 7.8 Brackish Water Fish 8.0 - 8.4 African Rift Lake Cichlids 8.1 - 8.3 Marine Fish