Real Reef Base Rock Large - Extra Large Whether used alone or alongside

Whether used alone or alongside Evolution Aqua filtration systems like the Nexus or EazyPod

400g treats 2250L depending on concentration

All metal parts are made out of titanium grade 2 and other parts are made out of high quality PA

Specialised Fertiliser contains nitrogen (N) and phosphorus (P)

Real Reef Base Rock Large - Extra Large Whether used alone or alongsideReal Reef Base Rock Mix Box : Large Extra Large Designed as a sustainable alternative to wild harvested live rock, this premium rock provides all the benefits of natural reef building materials without harming ocean habitats. Made in the U. S. A. using all natural marine friendly materials, Real Reef Rock is composed of the same calcium based building blocks as wild coral skeletons, ensuring a safe and effective environment for reef aquariums.