- Ancient reef rock, formed by nature.
- Totally natural, not man-made from sand and mortar in regular shapes.
- Paint-Free coralline algae colour, blends immediately into your tank.
- Calcium carbonate - buffers your aquarium water.
- Perfect porous structure for colonisation of beneficial bacteria.
- Ecologically sustainable and free from pests and hitchhikers.
- Each rock is unique in shape and size.
- Can be bonded together to form complex reef shapes and overhangs.
Premium Shelf is found in areas where natural plate formations occur, which are not very common structures within the ancient reef deposits, and takes more preparation than the other rocks to produce the finished product.
Each rock is unique and can be used to form fantastic shelf and cave structures on which you can place your corals or in which your fish can hide.
Available as an 18kg box or loose from your retailer.