Natural top and a smooth cut bottom making it the perfect choice for buildup a reef scape. Use these pieces to begin your aquascape. The flat bottom offers a firm first layer to build up from.
We recommend placing this rock under any rock work at the boundary layer between the glass and rock display. Separating them by 4-8" allows the rock work to "float" above this bottom layer, promoting healthy flow around the rock work and over the substrate. Foundation rock can be siliconed to the glass if desired.