Thinking of going bare bottom!

[FitoPharmer]

I use tumbled marble flooring tiles for my bare bottom. They are turning out to be way better then sand! I am planning on having a Zoa garden bottom as well. I'm planning to try and have a single species per tile. Hopefully it will fill out into a cool checker board pattern. The plus side to the tiles is they are turning out to be a neat version of nutrient export. If a tile gets covered in a little too much algae it can be easily removed from the tank scraped, scrubbed, and washed before returning it. Or you can buy some spares and just replace with new ones and bleach the old ones. The tiles do not seem to grown any additional nuisance algae either. substrate and flow!