637 results for 'rock'

MarcoRocks has taken the guesswork out of choosing how much of each rock type to use when planning that perfect aquarium scape. In our new "The Perfect Mix" box you'll find just the right mix of MR...

DAMAGED ROCK Rock Sizing: 4-8″ - Smaller Sized Rocks Real Reef Rock is our standard reef building rock.  It is very light, porous and full of holes and crevices. It is three dimensional in shape...

LifeRock begins as a sunlit piece of Pleistocene era seafloor thriving with living creatures. Over the next 100 millennia and the retreat of the ocean, this ancient piece of seafloor, now well...

Don’t just put rocks in your tank, ROCK YOUR REEF with LifeRock™. Amazing porosity, incredible biological performance (drops ammonia like real live rock), and unsurpassed realism make LifeRock™ the...

Caribsea® Moani Dry Live Rock is the perfect solution for starting your marine aquarium with the benefits of live rock. Moani will behave just like real live rock, providing your aquarium with vital...

High quality and biology neutral rocks designed to easy fragging. Our artificial rocks resemble natural live rock and unlike ceramic rocks, they are made of light materials and have high porosity...

PHOTOS ARE EXAMPLES - THESE ARE NOT MADE IN A MOLD - YOU WILL NOT BE GETTING THESE EXACT SAME ROCKS All rocks are unique in size, shape and weight. Fantastic shapes, incredible colors… Well check...

Increase the beauty of your aquarium landscape with these unique style stones and rocks to look like miniature rock formations. Customize your reef structure with safe, all-natural materials...

Nature's Ocean Purple Base Rock 40 LBS (Approx. 5 -9 inches) Purple base rock will become naturally live overtime because of its porosity : No artificial or engineered bacteria, Rapidly adapts to the...

Nature's Ocean Purple Base Rock 20 LBS (Approx. 5 -9 inches) Purple base rock will become naturally live overtime because of its porosity : No artificial or engineered bacteria, Rapidly adapts to the...

High quality and biology neutral rocks designed to easy fragging. Our artificial rocks resemble natural live rock and unlike ceramic rocks, they are made of light materials and have high porosity...

LifeRock™ LifeRock™ begins as a sunlit piece of Pleistocene era seafloor thriving with living creatures. Over the next 100 millennia and the retreat of the ocean, this ancient piece of...

South Seas rock is the premium choice of natural base rock for marine, reef, and African cichlid aquariums. Incredible macro and micro porosity for the ultimate biological media, and beautiful shapes...

LifeRock FragZone is the result of many requests to make popular LifeRock series in a small rubble size for the attachment of coral frags and more. Calcium carbonate rubble is treated with a...

Aquaforest Plug Rocks are an artificial alternative to natural live rock, designed from high-quality and biologically-neutral materials to resemble natural live rock. The plug shape prevents the...

LifeRock™ begins as a sunlit piece of Pleistocene era seafloor thriving with living creatures. Over the next 100 millennia and the retreat of the ocean, this ancient piece of seafloor, now well...

Increase the overall filtration power of your tank by adding Genesis Rock to your system.  Designed For Fresh or Saltwater Aquariums 23,000+ Additional Square Feet of Bacterial Space For Each...

New From MarcoRocksOur Coralline Colorant SprayA formula we spent almost a year perfecting, All organic, 100% reef safe, 100% fish safe.The perfect color to touch up any breakage the occurs in...

Don’t just put rocks in your tank, ROCK YOUR REEF with LifeRock™ “Belize Branch”! Spectacular branches make a reef tank go from nice to WOW! LifeRock™ Belize Branch fills an aquarium, but leaves open...

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...

Single 16" Round Mega CaveReal aragonitic base rock, not cement, no curing. Extensive macro and micro-porosity infused with spored bacteria for outstanding biological performance. Clean and safe for...

Dragon Stone Arches are the perfect way to craft a dramatic, dimensional, and visually appealing aquascape in your freshwater aquarium. These sculptures, created with natural rock, maintain their...

MarcoRocks Aquascaper's Choice consists of 3"- 6" single wafer pieces of our Shelf Rock, perfect for creating gravity-defying HNSA scapes. We recommend building on top of MR Foundation Rock. For...

MarcoRocks Aquascaper's Choice consists of 3"- 6" single wafer pieces of our Shelf Rock, perfect for creating gravity-defying HNSA scapes. We recommend building on top of MR Foundation Rock. For...

Increase the beauty of your aquarium landscape with these unique style stones and rocks to look like miniature rock formations. Customize your reef structure with safe, all-natural materials...

Each Arch is approximately 8" long. Fantastic shapes, incredible colors… Well check out new LifeRock™ Shapes, the latest version of CaribSea’s amazing LifeRock™ line up. Each box comes with 4 nano...

IceCap Elephant Stone is a brownish-gray-colored rock with a unique texture and appearance.  Enhance Your Aquarium with IceCap Elephant Stone! IceCap Elephant Stone, also known as Elephant Ear...

Ricordea Yuma Rock WYSIWYG (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Ricordea Yuma Rock WYSIWYG is a fast...

"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 th

THIS ROCK IS RUBBLE - NO "Standard" Pieces Real Reef Rock is our standard reef building rock.  It is very light, porous and full of holes and crevices. It is three dimensional in shape and comes in...

Yellow Zoanthid Rock Colony WYSIWYG (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Yellow Zoanthid Rock Colony...

South Seas rock is the premium choice of natural base rock for marine, reef, and African cichlid aquariums. Incredible macro and micro porosity for the ultimate biological media, and beautiful shapes...

"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 th

1 FREE RANDOM SAMPLE ROCK FREE WITH ANY ORDERS OF $20 or MORE   Real Reef Rock is a made of 100% natural marine friendly ingredients. Its components are made of the same building blocks which wild...

IceCap Cloud Stone is a safe and versatile gray rock for aquariums. It's great for any setup and won't harm your fish or invertebrates. Enhance Your Aquarium with IceCap Cloud Stone! IceCap Cloud...

Biologically neutral plugs made to easily fit grids in the frag tanks. The size of AF Plug Rocks fits perfectly most common reef grids sizes. These plugs were made of the highest quality materials to...

Increase the beauty of your aquarium landscape with these unique style stones and rocks to look like miniature rock formations. Customize your reef structure with safe, all-natural materials...

"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 th

South Seas rock is the premium choice of natural base rock for marine, reef, and African cichlid aquariums. Incredible macro and micro porosity for the ultimate biological media, and beautiful shapes...

10lb pre-measured in a Mesh Bag - South Seas Base 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...