AQUAROCHE - Goby Cave 1 opening
Small ceramic rock with 1 hole offering several holes which will allow your small fish to find refuge.
The porous structure of these ceramic rocks promotes the growth of an abundant population of bacteria and microorganisms, thus transforming these rocks into an effective filter media, similar to those used in traditional filters. In reef-type aquariums, these rocks, like live rocks, are quickly colonized by various forms of marine life, often within a few months.