Your opinions regarding bare bottom vs shallow sand bed vs deep sand bed

[Chad]

My personal opinion is if you are going to put sand in, be prepared to vaccum it. I don't think we can possibly get enough bio - diversity to break down every critters waste. So, it still builds up regardless. It just takes longer to build up with a sand bed with critters.

I have a two palm sized brain in my BB tank and have not noticed any damage to it.