- 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.
This will be your main 'go-to' rock that you will use for the construction of your custom reef.
An 18Kg mixed box contains rocks that range from 10-30cm but most of the pieces will be 12-16cm size. The shapes will be random and highly textured due to the natural origin of the material removed from the on land remains of an ancient reef.
Available as an 18kg box or loose from your retailer.