so im setting up another tank and i have a question. its going to be an anemone only tank maybe a few fish but i was wondering if anyone has ever tried puttin the pool sample tiles in their tank as frag disk or anything like that .. i work at a plant that makes the sample tiles and the bad ones just get thrown out an i think they would be pretty sweet as a bottom instead of sand or bare bottom. i just dont know what it would do the water in the tank release chemicals from the cement or not. i know ceramics have been used but wasnt sure if anyone has tried anything with cement or these tiles before.