Look for some suggestions on a good setup for the three chambers. I was thinking 1st chamber would be the media caddy with intank filter floss on top and the a semi-pure nano in the 2nd and 3rd. Swapping out for the uv sterilizer if needed. 2nd chamber was considering either the intake Fuge basket or mangroves. 3rd chamber pump, heater and MarinePure Gems. Has anyone used the empty space under chambers 1&2 for anything?