T-5s is all I gotta say......Ive seen MANY successful tanks growing clams and shit like that with just T5s. Ive had them with awsome results. Put a fan or 2 or 3 over the top of the water on the display tank and if its got a canopy put a fan in there and vent that bitch. If you got a sump get a low heat transfer return pump and put a fan over the sump also. I had OVER 1600 watts of lighting on my 180 and NEVER needed a chiller....

 

U must keep your AC on 55 degrees LOL we had three 400s with fans on a 110 with a 75 gal sump and the tank was a constant 85 degrees. Im a firm believer in over kill is better. then again im an SPS ADDICT so when NY had its black out a few yrs back i lost 14K in acros If i do another tank im gonna wait a few yrs and do a 400 with a 150 sump all sps and just sit infront of it and sip a beer smiling. I just want to finish the remodeling (3rd time haha) here 1st