well on my 100 i run 2x250w mh and 4x 65wpcs so if you got something similar to that you should be in good shape i have all types of coral and they do just fine i have 2x 4" fans in my canopy and im sure i get some more cooling from the trickle evaporation in my wet dry below ( increased surface area of the H20) and my temp stays right at 79 all day and at night fans go off to keep it constant