Two Little Fishies C-Balance Calcium & Alk Additive - 1 Gallon Planted Tank Tools 020 is a versatile adjustable

020 is a versatile adjustable AC recirculation and return pump for medium aquarium setups

Allows independent adjustment when calcium and alkalinity demand are not equal

Non-kink design helps maintain an open water path when properly installed

larger return pumps

Designed for quiet reliable continuous-duty operation

Two Little Fishies C-Balance Calcium & Alk Additive - 1 Gallon Planted Tank Tools 020 is a versatile adjustableTwo Little Fishies C Balance Calcium & Alk Additive 1 Gallon Two Little Fishies C Balance Calcium & Alk Additive 1 Gallon is the larger concentrate format of the C Balance two part reef supplement system. It is designed to replenish calcium and carbonate alkalinity while helping maintain magnesium and strontium ions in ratios closer to natural seawater for coral and coralline algae growth. C Balance 1 Gallon Concentrate for Larger Reef Systems The 1