Lighting?

[apedroza]

I'm about to do the same over a 75 gallon with 30 gallon sump. Do you run into any heat issues? Do you run a chiller?

I have had this set up for 2.5yrs and have never needed a chiller. My house is run on window units for AC so in the summer I use a nice size desk fan to keep the lights and water cool and it seems to work just great. In the winter I have no problems with the cold as the lights keep the tank pretty warm and the heater makes up for the rest.