Testing Test Kits: We Compared 5 Popular Aquarium pH Test Kits—Here Are the Results - Bulk Reef Supply

All pH test kits produced consistent results based on the panel’s unbiased independent observations. We tested Giesemann, Salifert, API, Seachem, and Hanna.

Keep your fish healthy and thriving by testing your aquarium water's pH regularly with easy-to-use API pH TEST KIT for freshwater aquariums. Testing water parameters weekly helps prevent invisible water problems that can be harmful to fish. pH is the measure of acidity of water, on a scale ranging from 0 to 14. A pH of 0 is the most acidic, while a pH of 14 is the most alkaline.

API Freshwater PH Test Kit

The Best Water Testing Kits For Saltwater Aquariums - Reef Builders Gear Guide, Reef Builders

Contains one (1) API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 4-Count Box Monitors levels of pH, nitrite, nitrate carbonate

API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 4-Count Box

Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contributes to unsightly algae and green water blooms, and in saltwater, excess phosphate can inhibit the growth of hard corals. The API Phosphate Test Kit tests phosphate levels from 0 to 10 ppm so that you can easily monitor the condition of your aquarium water. May be used in both fresh and saltwater aquariums.