Thanks everyone !
Kip - I don't run all the lights at the same time all day.
I've got the VHO actinics on timers, as well as the daylight VHO and two MH lamps.
The tankwater has never risen above 82 F
I've also got (2) 4" Ice Cap fans installed in the roof of the canopy.
Evaporation for sure plays a large part in keeping the temperature from getting too hot in there
About 1 to 1-1/2 gallons of top off every day.
lovethesea - Yes I do get the urge to add more to the tank, but somehow I've managed to keep things as is for the last 12+ months. I've come to the conclusion that I can't have it all - so I keep what I have for now.
Plus I'm saving up for a big tank next year