Recently just bought a chalice from a LFS, been reading about for a few months and have gotten my tank ready for one. I know they don't like intense lighting or flow and usually the middle of rock work is what I have read many time for them to be. I have a 20g AIO running with low flow and moderate lighting. Do I need to still place it in the rock work instead of the sand bottom near rock? If I need to put it in the rock work, do I need to lower the intensity of the light?