I'm thinking about gettin a 23" pc system from petsupplyliquidator.com, with 2 55w bulbs. I would rather not pay an extra $40 for the fans, but I think they're probably necessary on a 20g. What do you guys think?
about $5, one in and one out seems to work good but i have heard of two out draws the air over the hot lights and off the tank, mabe smoebody else will chime in.