CaribSea Frag Zone, 2.25 lb. Box Saltwater and to enhance the rate

and to enhance the rate of nitrification

and grazing areas for aquatic animals

Composed of heat-activated

Supplied in a state of suspended animation for maximum longevity

Self-cleaning impeller - The self-cleaning

CaribSea Frag Zone, 2.25 lb. Box Saltwater and to enhance the rateGet your frags seated faster on this preconditioned rubble! LifeRock FragZone is the result of many requests to make popular LifeRock series in a small rubble size for the attachment of coral frags and more. Calcium carbonate rubble is treated with a reef safe porous coating which allows rapid and easy adhesion of frags either naturally or with the help of the proper adhesive (species dependent). FragZone is also treated with live beneficial bacteria