Well, I just got back from my Dad's house to fix the Ca Reactor pump (it's now running great) and the tank temp (middle of summer) after having both 1000 watters running for their full duration and the tank temp was 78.6! No chiller needed baby!!! LOL!
Also, after being away from the tank for a while and then seeing it again, it looks very blue at first and as you stand there, it appears more and more white, I think it's just due to the intensity coming from the tank your eyes adjust.