This cured live rock is smaller pieces for use in  nano Saltwater Aquariums. appox size per piece:  8 to 15cm

Live Rock is the foundation of a great Marine Aquarium, and will act as a biological filter when you have an ample amount as suggested below.

These are rocks removed from the vicinity of a tropical coral reef with all of the life intact on them. They commonly have algae, sponges, worms, feather dusters, small crustaceans, polyps and urchins on them.

Suggested Amount:

1kg per 2 gallons / 9 litres.