Test Kits for Testing Water in Saltwater Aquariums

Part of the Saltwater Aquariums For Dummies Cheat Sheet

You can't visually determine the pH balance of the water in your saltwater aquarium. To maintain healthy levels of chemicals and minerals in saltwater aquariums, you have to test the water, and to do that, you have to buy test kits. Here's a general guide for purchasing test kits for your fish-only or reef tank. As your tank becomes more complicated, you can always add to your test-kit collection.

Test Kit Fish-Only Tank Reef Tank
pH yes yes
Ammonia yes yes
Nitrite yes yes
Nitrate yes yes
Alkalinity optional yes
Dissolved oxygen optional optional
Copper optional no
Phosphate optional yes
Iodine no optional
Calcium no optional
Silica no optional

Test kits are made so you don't have to be a chemist to use them. Although a couple of methods have been developed, the most common involves adding drops of the test chemical to an aquarium sample that changes the color of the water. You then match the watercolor with that on a color chart, which tells you the correct level of what you are testing.

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Saltwater Aquariums For Dummies Cheat Sheet

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