South Seas Base Rock is fossilized Oolitic Aragonite and harvested by our USA partners under lease with Zero marine life impact. The perfect base rock for Marine and African Cichlid tanks.

Our rock boasts incredible micro porosity which is not only essential for positive bacteria surface growth area but is also visually stunning and rich in architectural shapes - each piece is a one off sculpture.

Natural assorted pieces vary in size from 10-30cm. Sold by the 20kg Sack