Real aragonitic base rock, not cement, no curing. Extensive macro and micro-porosity infused with spored bacteria for outstanding biological performance. Clean and safe for all fish and inverts, environmentally responsible each piece being very unique.

Caution: ReefH2o takes great care to securely pack every type of rock. Due to the nature of shipping, damages to rock can occur during transit. Unfortunately we cannot guarantee delivery or credit damages but most can be repaired with epoxy or mortar. We recommend pallet shipping for rock if possible.