Marco Rocks

The most porous and natural rock on the market. Aids natural biological filtration and at the same time offering porous and realistic surfaces for attaching corals and frags.

Also suitable for cichlid and hard water freshwater tanks. 3 types available

- Base rock (random boulders and shapes)
- Foundation rock (flat cut on the bottom for a stable base)
- Shelf rock (natural shelf patterns like a real reef)

Fast and cheap!

Q: What are Marco Rocks used for?

A: Marco Rocks are premium natural reef rocks used to create aquascapes, reef structures, caves, arches, and coral foundations in marine and reef aquariums.

Q: Why are Marco Rocks so popular in reef aquariums?

A: Marco Rocks are lightweight, highly porous, easy to work with, and provide an excellent foundation for beneficial bacteria and coral growth.

Q: Are Marco Rocks safe for reef aquariums?

A: Yes, Marco Rocks are specifically designed for marine and reef aquarium use and are trusted by reef hobbyists worldwide.

Q: Can Marco Rocks be used to start a new reef tank?

A: Absolutely. Marco Rocks are commonly used as the primary aquascaping material in new reef aquarium setups.

Q: Do Marco Rocks contain pests?

A: Unlike many wild-harvested live rocks, Marco Rocks are typically free from nuisance pests, unwanted algae, and hitchhikers.

Q: Are Marco Rocks live rock?

A: Marco Rocks are generally supplied as dry reef rock. Over time, they become biologically active as beneficial bacteria and microorganisms colonise the surface.

Q: Will Marco Rocks help biological filtration?

A: Yes, their highly porous structure provides extensive surface area for beneficial bacteria, helping support the aquarium's biological filtration.

Q: Can I build custom reef structures with Marco Rocks?

A: Yes, Marco Rocks are excellent for creating custom aquascapes, including arches, shelves, caves, pillars, and open reef structures.

Q: Can Marco Rocks be glued or cemented together?

A: Absolutely. Many reef keepers use reef-safe mortar, cement, epoxy, or cyanoacrylate glue to create secure rock structures.

Q: Do Marco Rocks affect water chemistry?

A: Marco Rocks are suitable for marine systems and may contribute beneficial buffering properties commonly associated with reef rock.

Q: Are Marco Rocks suitable for coral placement?

A: Yes, they provide an excellent foundation for attaching and growing SPS, LPS, and soft corals.

Q: Should I rinse Marco Rocks before use?

A: Yes, rinsing before use helps remove dust and loose particles generated during handling and transport.

Q: Can fish and invertebrates use Marco Rocks as shelter?

A: Absolutely. The natural shapes and porous structure create caves, hiding places, and territories for reef fish and invertebrates.

Q: How long does it take for Marco Rocks to become biologically active?

A: With proper cycling and bacterial supplementation, Marco Rocks will gradually become colonised by beneficial bacteria and develop into a mature reef structure.

Q: Why choose Marco Rocks for your reef aquarium?

A: Marco Rocks offer exceptional porosity, pest-free reef building, natural appearance, and endless aquascaping possibilities, making them one of the most popular choices for modern reef aquariums.