Caribsea LifeRock - Shelf - Sold by the Pound Small Animal Food composed of blue

composed of blue

799 is sturdy and chew-resistant

450 (for up to 90 gallons)

Each 500 mL treats up to 500 US gallons for up to six months

Because of its large porous surface area

Caribsea LifeRock - Shelf - Sold by the Pound Small Animal Food composed of blueLifeRock Shelf Sold by the Pound A uniquely structured aragonitic base rock featuring dozens of micro and macro pores to promote natural, healthy bacteria growth inside of the reef or marine aquariums. Sold by the pound. 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 inland, has formed a pure, aragonite