I used 2 5" clip on fans, one under the hood and one blowing over the
sump. They are very cheap and do a great job. You do need to keep a
closer eye on your water level if you do not have an auto top off
system because you will see a lot more evaporation.

Ken


Michael Lawford wrote:
Hi all,

I need some advice on how to cool my tank. It is getting up to 27/28
degrees C and my corals are hating me for it. I need to come down to 25
degrees C but HOW? Buying a chiller would be an option but they are hellish
expensive here - about US$ 850. I tried taking my coiver glass off but
promptly blew one of my ballasts that drive the T5 lights because of salt
evaporation.

Any advice on any ways to get the tank 1 or 2 degrees cooler would be much
appreciated.
Thanks,
Mike