Air conditioning broke, water temps rising. What to do? - Tropical Fish Keeping - Aquarium fish care and resources
LinkBack Thread Tools
post #1 of 6 Old 06-04-2010, 02:36 PM Thread Starter
New Member
CoffeeMan's Avatar
Air conditioning broke, water temps rising. What to do?

So my home's air conditioner went out last night, and it's not getting fixed until next Wednesday. The house is a nice 90 degrees inside right now, and the water temps in my tanks are rising. Anything I can do to keep them down?

29 Gallon Tank
7 Zebra Danios (1 is actually a red glofish)
7 Serpae Tetras
7 Emerald Green Corydoras

20 Gallon Tank
2 Albino African Clawed Frogs
Anywhere between 0 and 8 feeder guppies

15 Gallon Tank
Lots of Trumpet Snails.
1 Assassin Snail
2 Female Guppies
1 Male Guppies

Pics coming soon in tank profiles.
CoffeeMan is offline  
Sponsored Links
post #2 of 6 Old 06-04-2010, 03:03 PM
New Member
Mr Fishy's Avatar
Keep the lights off. Other than that there isn't much you can do short of buying a chiller.

60 gallon FOWLR in progress
Mr Fishy is offline  
post #3 of 6 Old 06-04-2010, 07:53 PM
zof's Avatar
I've heard pointing a fan at the top of the water will increase evaporation which should help to a point, maybe some ice in baggies? Maybe this will help;
zof is offline  
post #4 of 6 Old 06-04-2010, 08:17 PM
JouteiMike's Avatar
I've done the ice thing, putting icecubes in a bag and floating them, it does work. Also, adding a fan works great too, but doesn't show dramatic results. Do you have live plants? Keeping the light off may affect them. What is the current tank temp?

The best way would be to do frequent, small water changes and add cooler water to slowly lower the temperature.
JouteiMike is offline  
post #5 of 6 Old 06-04-2010, 10:24 PM
TexasTanker's Avatar
I'd start freezing blocks of tank water and use them during the day to keep the temp down. I'd also do as others suggested. Nothing fancy or complex, simply aim an oscillating fan at the water. LOL, we used that as air conditioning when I was a kid. lights or no lights, heat rises, so the heat from the lamps will probably have a minimal effect on the tank as a whole if you keep them on during the crisis.

Another trick that may or may not work depending on how big your filter is, put those ice packs (like for coolers) in the filter compartment. that will distribute cooler water to the hottest water in the tank.

"Good schools do not make one educated. The ability and desire to learn makes one educated."

"Knowledge does not make a person smart. Utilizing that knowledge makes them smart."
TexasTanker is offline  
post #6 of 6 Old 06-05-2010, 11:47 AM
Byron's Avatar
I am not an advocate of doing frequent water changes with cooler water, nor of floating ice/frozen water blocks in the aquarium. The reason is that it creates continual fluctuations, and while a degree or two might not matter, if it is more it can be stressful, more than the warmer constant temperature.

I now have an air conditioner, bought last summer as we had an unusual heat wave. But prior to that, for more than 15 years, I did nothing when we experienced a heat wave which normally last a few days to a week. The house temp was well over 90, but cooled down at night. I left the tanks alone. I lost no fish during any one of these heat waves. For less than a week I wouldn't expect you to lose fish--unless they are cool water fish of course. But normal tropicals will probably manage.

We often think that tropical streams are a stable environment in water parameters, including temperature, but this is far from true. It is the more sudden fluctuations that are hazardous, not gradual warmings and coolings as the fish experience diurnally in nature--or in the aquarium under these conditions. Keep the water moving to ensure adequate oxygen supply.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Water Conditioning 00blaster250 Beginner Freshwater Aquarium 13 02-25-2009 03:00 AM
Thoughts on water conditioning and other 'additives'? LHughes77 Beginner Freshwater Aquarium 2 04-07-2008 08:09 PM
Conditioning my water? Hazarrd Beginner Freshwater Aquarium 6 12-28-2006 01:36 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome