Water temp

Ok, my 125 gallon has been holding a water temp of 77 degrees and now here it is March 13th and the temp outside got up to 78 degrees here in central Illinois... and my tank hit 81 degrees... am i going to have to turn on my air conditioner already ? I do not have any corals yet... only the fish and inverts listed in my signature. Its not the heaters.. as I unplugged them when I noticed the temp going up. The electric company is gonna love me lol ..

 

A very simple and effective method for bringing down the temp is to place a small fan to blow across an open part of the tank. In my case it was so effective that the heater came on in the tank, so you may have to plug your heater back in.

The only thing to keep an eye on is the evaporation of the water so you'll have to top-off more often.

 

Yes, evapopational cooling works well, you will just have to replace the water lost through evapotaion with FRESH water!
Saves money on electricity and having to buy an expensive chiller!

 

I too had a problem with the tank getting too warm, and a small 6" desk fan from Lowes did the trick. Now my heater kicks on every once in awhile too, and the tank maintains a pretty constant 76 to 78. Evaporation is around a gallon or so a day, so that's manageable. The fan was only $7.00, and I'm pretty sure that's a tad cheaper than a chiller!

 

Turning the ceiling fan on high and opening the lids has brought the temp down a degree or two already.... thanks guys.....

 

Running open top is the way to go IMO. Better for temperature control and o2 exchange. What kind of lights do you have on the tank?

 

I had the same problem. So I ordered Two 4" fans from dr fosters. both blow in the same direction. One sucks air in, the other pulls air out from under my canopy. I have an open top, no glass lids, just the wood canopy with the fans. My problem is my evaporation. I have to add about 5 gallons every other day from the evaporation, but my temp stays down. So i guess its a trade off.