CaribSea's Instant Aquarium Crystal River Substrate takes all of the guesswork out of creating a new tank. This gravel substrate is packed with living, water-purifying bacteria, state of the art clarifier, and a complete water conditioner.
Instant Aquarium substrates immediately begin the cycling process for new water, preventing new-tank syndrome and suppressing the growth of nuisance algae. Its complete water conditioner detoxifies metals, eliminates ammonia, reduces nitrates and nitrites, neutralizes chlorine and chloramines, and provides a protective slime coat to reduce unhealthy fish stress. All you need to do is add tap water!
Coverage: Crystal River substrate is about 95 lb/cubic foot. The amounts below are approximate amounts needed to create 1" depth by aquarium size.