Maintains a proper ph of 8.2 without the constant addition of chemicals Creates a biological balance naturally eliminate nuisance algae Speeds the cure of live rocks by constructive bacterial interaction
Contains specially selected marine bacteria to suppress "New Tank Syndrome"
Never needs replacement
Aids in the growth of corals
Buffers for the life of the aquarium
Helps maintain a proper pH of 8.2 without constant chemical additions
1 x 1 x 1 inches
CaribSea Arag-Alive Hawaiian Black Aquarium Gravel, 20 lbs. (Grain size: 0.25 mm - 3.55 mm)