MERIDIAN 9KG

High-quality natural substrate for reef aquariums. Helps stabilize calcium and alkalinity. Natural oolitic aragonite for all types of marine, reef, and tropical aquariums. Aids in preventing significant pH drops. Meridian is a fully natural oolitic aragonite substrate for all reef and marine aquariums. It is a premium aragonite substrate specifically designed for reef aquariums. Its grain size (0.25 to 0.50 mm, fairly uniform) is perfect for reef inhabitants, and its chemical composition helps stabilize calcium and alkalinity while preventing large pH fluctuations. Unlike competing "wet" products, Meridian is sold dry, so you only pay for the gravel and not unnecessary water.