"By the Pound" means you are choosing the weight of your rock.    Ex: Qty 5  is 5 Pounds of Rock, NOT 5 Rocks.   Selling individual rocks is impossible due to the fact that every rock is unique in size/shape/weight...

Two Little Fishies STAX Flat Porous oolitic limestone, cut on both sides for ease of stacking 100% natural, never any chemicals or additives Sustainably collected For Marine or Freshwater Provides stable structure and limitless creative...

Don't just put rocks in your tank, ROCK YOUR REEF with LifeRock Shelf Rock! Spectacular shelves make the perfect display area for inverts or use shelves to create caves and platforms. Amazing porosity, incredible biological performance (drops ammonia...

South Seas Base Shelf Rock - Natural weathering processes form the fantastic shapes of South Seas Base Rock by the erosion and pitting of limestone over the course of eons. It is clean and safe for marine, reef and hard water freshwater aquariums such as...

Don't just put rocks in your tank, ROCK YOUR REEF with LifeRock Shelf Rock! Spectacular shelves make the perfect display area for inverts or use shelves to create caves and platforms. Amazing porosity, incredible biological performance (drops ammonia...

Real Reef Shelf Rock is our version of the shelf or slab rock that use to be imported from the Kingdom of Tonga for many years, before getting banned for destructive collection practices. Many have try tried to ship similar wild products from countries...

Two Little Fishies STAX Flat Porous oolitic limestone, cut on both sides for ease of stacking 100% natural, never any chemicals or additives Sustainably collected For Marine or Freshwater Provides stable structure and limitless creative...

Two Little Fishies STAX Flat Porous oolitic limestone, cut on both sides for ease of stacking 100% natural, never any chemicals or additives Sustainably collected For Marine or Freshwater Provides stable structure and limitless creative...

Real Reef Shelf Rock is our version of the shelf or slab rock that use to be imported from the Kingdom of Tonga for many years, before getting banned for destructive collection practices. Many have try tried to ship similar wild products from countries...

The ever so popular MarcoRocks premium Shelf rock, now available in Nano size for smaller aquariums.  100% natural, made in the USA. Easily Stackable Natural limestone product from ancient reefs Can easily be glued together with Coral glue...

Real Reef Shelf Rock is our version of the shelf or slab rock that use to be imported from the Kingdom of Tonga for many years, before getting banned for destructive collection practices. Many have try tried to ship similar wild products from countries...

Marco Rocks Frag Mounts-  Perfect for gluing small frags to keep them in place.  The heavy weight of natural rocks in addition to the natural limestone makes these the perfect choice for growing small frag.  We use them in areas of high...