Marco Foundation Rock 18KG Box

Whether you are building a Saltwater fish only, a Reef tank or a Fresh water tank, and even reptile environments, you will love this rock and so will your pets. It is highly porous and beautifully shaped. Marco rock is a natural rock that is harvested on land from an ancient reef system buried when the Florida land mass was formed.

The rock is a "green" sustainable product, because it is not harvested from a marine environment it has no negative impact on our delicate reef or marine ecosystem. Combine this with our unique no chemicals cleaning and processing and you get great looking rock, totally pest and organic free that's also environmentally friendly.

Welcome to the dawn of stable, architecturally sound aquascaping.

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.