API Tap Water Conditioner in 1 gallon jug.
The Conditioner eliminates chlorine and chloramine, both of which are toxic to your fish and beneficial bacteria. Either chlorine or chloramine will be found in water coming from municipal sources. Aeration alone can not remove chloramines from your hydroponics solution. If you're using water from a public source, get Tap Water Conditioner to keep your critters and System safe.
Treats up to 75,700 gallons of water.