A structure for attracting and accumulating aquatic organisms that is a simple, inexpensive, non-degradable unit, easy to assemble and use, as well as easy to retrieve and move for use in a different location, formed of a central 4″ PVC pipe having cut outs through which are inserted bar slats made of solid, generally rigid, 100% PVC material. The bar installation is a compressed fit into the cut-out sections of pipe, forming a compress fit, self-expanding, spring-lock design. Holes may be drilled in each end of the central pipe so that a hook may be inserted in one end, allowing the habitat structure to be hung from a dock or tethered to another stationary object, or retrieved with a boat hook for ease in removal and relocation. Alternatively, the use of coupling connections permits joining one habitat structure to another in order to form a larger habitat structure.
