What lighting do you have on the tank? We had our bubble under
floresents for a while and then under VHO in a 55g before we moved him
to the 125 and added 175w MH to the VHO. Mr Bubble is just off
the bottom and under the MH. In both tanks he was close to the bottom
except when we first rescued him and needed all the help he could get!.
Good luck ! #ed_op#br#ed_cl#
sarah