Structures

There is simply no better, no more spectacular way to aquascape your marine or reef aquarium. These open, light shapes not only provide lots of cover and “play area” for fish, but provide nice nooks and shelf areas for inverts too. CaribSea...

Fantastic shapes, incredible colors… Well check out new LifeRock™ Shapes, the latest version of CaribSea’s amazing LifeRock™ line up. Each 20 pound box comes with 4 arches! There is simply no better, no more spectacular way to...

A Single Long 24" Mega ArchReal aragonitic base rock, not cement, no curing. Extensive macro and micro-porosity infused with spored bacteria for outstanding biological performance. Clean and safe for all fish and inverts, environmentally responsible each...

Approximately 8-14" on Average in Length, hand made so all the designs slightly different. Real Reef Arches are Here!  The best looking manmade rock now in Arch form.  There are 4 arches to a box of random size & similar but random shapes...

Not quite Reef Saver, not quite Shelf.  Quite Unique. This Hybrid MarcoRock seems to do it all.  It lends itself to be quite easy and forgiving to work with.  The shelving aspect allows for ample ridges and overhangs, which truly is the...