Real Reef Rock - Small/Medium Rocks 45lb Box Macroalgae start measuring the specific gravity

start measuring the specific gravity with a refractometer or similar instrument

gorgonians and aquatic plants

Multi-directional Input Barb: Accommodates various plumbing configurations with its flexible water input

trace elements and pollutants in the probes

Real Reef Rock - Small/Medium Rocks 45lb Box Macroalgae start measuring the specific gravityThere will be an extra shipping charge for heavy products like sand, rock, or salt. Real Reef Rock is our standard reef building rock. It comes in a variety of sizes from small to show size custom. It is very light, porous and full of holes and crevices. It is three dimensional in shape and comes in many natural shades of purple, pink and red. It replicates the look, feel and function of coralline encrusted coral skeleton rock. Its made from all