STAX is flat, porous oolitic limestone for building layered aquascapes in marine or freshwater aquariums. Provides a stable structure and limitless creative fun! Avoid introducing pests and create the aquascape of your dreams. Glue together to make open, gravity defying structures with lots of horizontal surfaces for attaching live corals. Use to create a base for coral frags.

 contains an assortment of rock sizes.