Please indicate in your Order Notes (located below your cart) if you'd like to receive larger or smaller pieces.
The photos represent an example of each type of rock. You will receive a similar version of what is depicted based on the type you choose.
Marco Base is a natural rock that is harvested on land from an ancient reef system buried when the Florida land mass was formed.
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.
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.
Our MarcoRocks is the finest all natural aquarium rock available to the aquarium enthusiast today. It is a once live natural reef rock.
All natural calcium carbonate rock. Never any chemicals, additives. Often, you can spot fossilized ancient corals in the rocks. It comes to you pest and organic free.