Serenity Coral Rubble 3-5cm

Serenity Natural Aragonite Coral Rubble is an ideal natural substrate for marine or freshwater aquariums. Finest grade small rubble size, looks brilliant in aquariums, also suits use as filter media.

The coral sand helps in raising and stabilising a higher pH

• Perfect substrate for the base of aquariums, will not blow around, perfect for Marine and Cichlid tanks.
• Graded, triple washed, and is ideal for Marine and Reef Aquaria, and freshwater where a higher pH is required.
• Naturally buffers pH and adds calcium.