While that may help it does not do any good if your not there to put
that frozen bottle of water it in the tank....
Best bet is to address the problem and correct it. Use a fan if yu can
not afford a chiller. They are easy to mount under a typical hood etc.
and if yuu power it with an adjustable power pack (wall Wart) you can
speed the fan up or down and vary airflow to suit temp conditions. I
normaly run my fans on 6VDC most of the year. In early spring before
the AC is turned on, and its getting warm outside and inside I turn
the voltage up to 9.6 or 12 volts and give it more powewr and provides
more cooling flow so tanks run cooler eventhough its getting hot
outside. Same for when we have to fire up the heat, I speed up the
fans to push more air flow over the tanks surface water for more
evaporaiton and more cooling. The drawback is increased evporation so
more or larger top offs are required, but its stil better than having
a hot tank to deal with. Iyts also a failry good idea to keep a heater
pushed up and working against the fan so they more or less work
against each other. Thhis usually accomplishes a fairly constant temp
range the tank runs in., and with a bit of experimenting, you can
figure the ideal tank temp to run...


On Sun, 14 Jan 2007 15:13:07 -0800, "RubenD"
wrote:

I knew someone who put a 2 litter bottle with water in the fridge and then
put it in the sump when it really got warm.

It seemed to help.

Ruben


"KurtG" wrote in message
t...

If it's not one thing, then it's another...

I came home this evening and my tanks temp was pushing 86.4. Ouch.

I turned off one MH, turned on the AC, and have a fan on the tank. It's
starting to cool off, but what now? Chiller? Any other tricks?

--Kurt




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I forgot more about ponds and koi than I'll ever know!