Premium MarcoRocks Key Largo Prime Foundation Cut Rock 100% Pest Free Sustainable Choice Optimal Biological Filtration Create Beautiful Aquascapes Our ability to mimic natural reef structures is only as good as the rock we have to work with. Lucky for us, there is MarcoRocks. Foundation Cut Rock is perfect for creating layered aquascapes with overhangs and caves for visual interest. Unlike some other types of shelf rock available, MarcoRocks rock is a natural product cut and not machined flat, giving it a more natural look. We recommend stacking the rocks as horizontal as possible and cementing them together at key junctions with E-Marco-400 mortar to secure them in place. Typical Size Range: 8"- 12" Long (measured at the longest distance) Pest Free Because it's not taken from the ocean, MarcoRocks dry rock offers a pest-free start to your aquarium. No worrying about introducing fish parasites, coral pathogens, or annoying algae. The rock's natural porosity also makes it an excellent medium for beneficial bacterial growth, crucial for a balanced and healthy ecosystem. Sustainable This all-natural calcium carbonate rock is harvested from dry areas that were once ancient reefs. Often, you can spot fossilized corals and shells within the rock. Because it is not harvested from a marine environment, it has no negative impact on our delicate reef or marine ecosystem. Combine this with MarcoRock's unique no-chemical cleaning and processing and you get great looking environmentally friendly rock. How Much Rock Do I Need? How much rock you need may vary slightly depending on your overall goal for the aquascape, but as a general rule of thumb, 1 pound of rock per gallon of tank volume will be a good start. Always consider purchasing a bit extra to ensure you have enough material to achieve your desired look. Any extra rock can always be broken up and placed in your refugium or sump for added biological filtration. Shipping: We make every effort to securely pack the rock. However, the shipping automation is not always gentle on heavy products like this and they do not consider this product insurable. Because of this, there is some inherent risk with shipping rock like this across the country and it is impossible to replace or refund broken pieces. If this happens most pieces can be repaired with epoxy, putty, or mortar.
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