API® PROPER pH 6.5 automatically sets and stabilizes pH at 6.5, and also works to remove chlorine and detoxify heavy metals.
It works best with Tetras, Discus, and Angelfish, and contains electrolytes to reduce fish stress.
It may be used when setting up an aquarium, or when changing water

API® PROPER pH 7.0 easily sets and holds pH at 7.0 in tropical community aquariums, additionally removing chlorine and neutralizing chloramines to make tap water safe and livable for fish. To boost overall fish health,
API PROPER pH 7.0 also provides essential electrolytes, and detoxifies heavy metals in aquarium water. p
H is the measure of acidic or alkaline conditions in water, where a value of 7.0 corresponds to a neutral pH, pH values about 7.0 are considered alkaline, and pH values below 7.0 are considered acidic.
Different fish need different pH levels to be healthy, so it is important to test your water regularly to ensure pH levels fall where they should. If water does not test at the desired pH level, use API PROPER pH 7.0 to adjust and hold the level. API PROPER pH 7.0 works best for communities of tropical fish, and should be used when setting up an aquarium, or when performing a water change.
Do not use in aquariums containing live plants.

API® PROPER pH 7.5 automatically sets and stabilizes pH at 7.5, and removes chlorine and detoxifies heavy metals.
PROPER pH 7.5 also contains electrolytes to reduce fish stress and boost overall health. p
H is the measure of acidic or alkaline conditions in water, where a value of 7.0 corresponds to a neutral pH, pH values about 7.0 are considered alkaline, and pH values below 7.0 are considered acidic.
Different fish need different pH levels to be healthy, so it is important to test your water regularly to ensure pH levels fall where they should.
If water does not test at the desired pH level, use API PROPER pH 7.5 to adjust and hold the level for fish such as Goldfish, Barbs, Central American Cichlids, and general live bearers like mollies, swordtails, and guppies.
For use when setting up an aquarium, or when performing a water change.

API® PROPER pH 8.2 automatically sets and stabilizes pH at 8.2 in saltwater, brackish, and African cichlid aquariums without the use of phosphates. pH is the measure of acidic or alkaline conditions in water, where a value of 7.0 corresponds to a neutral pH, pH values above 7.0 are considered alkaline, and pH values below 7.0 are considered acidic.
Different fish need different pH levels to be healthy, so it is important to test your water regularly to ensure pH levels fall where they should. If water does not test at the desired pH level, use API PROPER pH 8.2 to adjust and hold the level.
Use when setting up aquarium or changing water.