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Yesterday, it was a hot day, my tank shoot up to 88 F, and i don't have a chiller so i put a fan on top of the water and let some cold bottle of water floating in my tank. This morning, it is sitting at 76 F, I hope i did not kill all my coral.

What are your method if you don't have a chiller? Please share
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THREE SOME

i use the aquacontroler to power my heat and my one 4 inch fan on my 180 gallon.
temp is always within 1 degree difference.
They have one left at redcoral last i looked.
http://redcoralaquarium.net/onlinest...roducts_id=440

Eep! 88 to 76 is a huge swing! Try keeping your base temp a bit higher like 78 or 80 degrees, and then use fans to keep it down. You can also time your lighting so it's on during a cooler part of the day. Luckily I have central air, and the tank doesnt' go above 80 even with the halides and T5HOs running.

My central air is toast but I get by with one of those 4 in 1 units on rollers which I have next to my tank. It's on a timer to run for most of the day and I have the temperature selected around 27 C so most of the time it runs only as a fan. When the room temp hits the 27 threshold, the unit kicks into air conditioning mode and does a nice job of stabilizing the tank temp. I have the louvers of the unit pointing up towards the lighting and that seems to work well. I think you can get the newer version of these moveable air con units for around $600 which is probably close to what a good chiller will cost. The good thing about the portable, is you can use it as a heater in the winter, de-humidifier or just as a fan. A chiller is solely made for your tank and can't really be put to use on anything else.

My tank hit 82 today.... so not bad.... I think that tunze aquawind fan is really helping as I do not have a chiller or central AC.

i have a 18" floor fan that i just aim at it. seem to the job. never realy gets above 82. base temp 78

I bought a portable air conditioner. Acts to keep a few rooms nice and cool and the tank temp in check. I was going to buy a chiller but this way we stay cool as well :)

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I put the 18" floor fan now and it is doing ok now. Thanks for all reply. Cheers
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Vapor Bros Vaporizer

Glad you got your problem dealt with... I had heat issues until I spent 10 bucks on on a fan. A 6" fan blowing directly on the MH fixture and my temp is 80 F at all times. Never varies, with the tank almost completely covered in glass.

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Where did you get a 6" fan for 10 bucks?
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Weed

The Bargain Shop. They also had 10" box fans for 15 bucks.

Central AC for me. Keeps everyone in the house from over heating, including the aquatic inhabitants :-)

Oh for sure, my living room never rises above 22C. :biggrin: Love my 10 000 BTU an hour AC.

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I found couple small fans at Walmart for $10 btw. Central AC would be nice but can't afford it

Cheers
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WENDIE 99

I'm in the same boat, oh well makes the winter months all that much better.

I bought a portable AC (the type that has vent tubes) last year in August for 600.00 on sale at Canadian Tire. It works great... best 600 bucks I ever spent (not really, but it keeps me comfortable).

I found have tanks in the basement you can have better control. My tanks are around 78 to 82 depending on the day. :biggrin:

Forgot to switch on the fan today and my aquarium temp shoot to 90 F :cry:
No adding new corals till the heat wave gone.. another week ?

I was running at 84 yesterday and 81 today. running my lights at night and I run chillers on both my tanks plus fans. My main tank is upstairs though.
Soon I will have to add that 250w heater though to the 500w I already have.:lol:

I don't have a chiller. already turned on the fan and add ice block to slowly get the temp down. I guess I have to run the lights at night for the moment.