Do you use a chiller?

[robbyville]

Hi Andy,

That is a lot of light, but at the same time I think that much of it would depend on how much water you are running through the system and what other forms of cooling you have.

I originally had my fans set up so that one blew in and one out, temp was a real problem (700 watts on a 4ft 60 gal, hood enclosed except for the back, no under stand sump, it's built into the tank). I changed the fans so that both blew cool air in and now my tank remains stable at 78 with no air conditioning, etc.

Good luck,

Rob