Gray Coast sand 10kg Gray Coast™ Calcite is an all natural calcite substrate for all types of marine, reef and tropical aquaria. Its chemical composition will assist in stabilizing calcium and alkalinity while preventing large pH declines. Unlike competing “wet” gravels, Gray Coast™ is sold dry: this bag contains 35% more gravel than a bag of wet gravel of equal...

Aragonite sand Pearl Beach 3.5kg Pearl Beach™ is an all natural aragonite substrate for all types of marine, reef and tropical aquaria. Its chemical composition will assist in stabilizing calcium and alkalinity while preventing large pH declines. Similar in appearance to Meridian™, it's grain size is considerably more varied. 

Aragonite sand Pearl Beach 10kg Pearl Beach™ is an all natural aragonite substrate for all types of marine, reef and tropical aquaria. Its chemical composition will assist in stabilizing calcium and alkalinity while preventing large pH declines. Similar in appearance to Meridian™, it's grain size is considerably more varied. 

ArtReef Rock XL (9/11kg) The sets in the ArtReef Rocks range are designed with the aquarist in mind. That is to say, they are functional, very beautiful, practical, useful and easy to assemble. ArtReef Rocks creations are all handmade in the Philippines from the finest aragonite and special binders. They are free of nitrates and phosphates and have a high porosity to...

ArtReef Rock Large (7/8kg) The sets in the ArtReef Rocks range are designed with the aquarist in mind. That is to say, they are functional, very beautiful, practical, useful and easy to assemble. ArtReef Rocks creations are all handmade in the Philippines from the finest aragonite and special binders. They are free of nitrates and phosphates and have a high porosity to...

ArtReef Rock medium (5/6kg) The sets in the ArtReef Rocks range are designed with the aquarist in mind. That is to say, they are functional, very beautiful, practical, useful and easy to assemble. ArtReef Rocks creations are all handmade in the Philippines from the finest aragonite and special binders. They are free of nitrates and phosphates and have a high porosity...

ArtReef Rock small (3/4kg) The sets in the ArtReef Rocks range are designed with the aquarist in mind. That is to say, they are functional, very beautiful, practical, useful and easy to assemble. ArtReef Rocks creations are all handmade in the Philippines from the finest aragonite and special binders. They are free of nitrates and phosphates and have a high porosity to...

Aragonite sand Meridian 9kg Meridian is a natural oolitic (spherical or egg shaped) aragonite substrate for all reef and marine aquaria. Meridian is the premium aragonite substrate for the reef aquaria. It's grain size (fairly uniform .25 - .50mm) is ideally suited to reef inhabitants. It's chemical composition will assist in stabilizing calcium and alkalinity...