I used to have 4 x 96W(?) HO fluorescents in a hood about 4" above a 105 gallon covered with glass. had to run intake and exhaust fans along each row to vent the HOs heat, but it still got damn hot. It was impossible to go without a chiller here as the summer temp would run about 78F. Anyhow, after having tanks continuously for >20 years, I am taking a break. But, I did have the wall the new tank will eventually go on pre-plumbed for water and a waste line- no hoses or buckets for anything!