Go Back   Pet forum for dogs cats and humans - Pets.ca > Other pet critters - Birds, fish, rabbits, reptiles, rodents and exotics > Fish

Thread Tools Display Modes
Old August 18th, 2009, 09:19 PM
Joe549 Joe549 is offline
Junior Member
Join Date: Feb 2009
Location: Kingston, ON Canada
Posts: 16
Fish Tank Water Cooler

Is there a product available for cooling the water in a fish tank? The water in my gold fish tank is up at 29c. The tank is in the basement, no heater, but the weather has been so hot and humid lately that the water temp in the tank keeps rising. The only thing I can think of is water changes, but I don't want to change the temp so quickly that it hurts the fish....
Reply With Quote
Old August 19th, 2009, 11:34 AM
Bina's Avatar
Bina Bina is offline
Skylar's Farm
Join Date: Nov 2006
Location: East Ontario, west Que.
Posts: 509
How about filling a couple of small plastic bags with proper temp water (22c) and floating the bag in the tank?
Please have pets spayed and neutered,
and wearing a collar with an ID tag.
Reply With Quote
Old August 19th, 2009, 05:21 PM
clm's Avatar
clm clm is offline
Senior Contributor
Typing Test Champion, Curveball Champion, Mahjong Champion, Zookeeper Champion
Join Date: Feb 2007
Location: Mississauga, Ontario
Posts: 3,333
The fish will be fine at 29C, just remember that warmer water holds less oxygen, so if you can hook up an air pump and a few air stones that'll help with the oxygen levels.

Reply With Quote
Old August 19th, 2009, 08:20 PM
MyBirdIsEvil's Avatar
MyBirdIsEvil MyBirdIsEvil is offline
Senior Contributor
Join Date: Apr 2006
Location: Missouri
Posts: 1,720
There's a device called a chiller but they're very expensive. If you don't mind spending the money then look up "aquarium chiller" on google and see what I'm talking about. I think there's also some DIY ones if you're able to do something like that.

Otherwise put a powerhead in there pointing slightly towards the top of the tank to turn the water over and oxygenate it (it's true that warmer water holds less oxygen, the circulation will also help to cool it) and you can also float bags of ice in the water.

Last edited by MyBirdIsEvil; August 19th, 2009 at 08:33 PM.
Reply With Quote
Old August 20th, 2009, 10:15 AM
CearaQC's Avatar
CearaQC CearaQC is offline
Garden nut
Join Date: Oct 2007
Location: Great White North
Posts: 1,511
Or another option, if you don't mind not being able to look inside the tank from the sides.

Recall your childhood science education and what happens when it gets hot. You sweat. The evaporation cools you. And when it's damp, you feel cooler. Just like the old "swamp cooler" idea of a large squirrel cage fan air conditioner that is fed with water drops.

So taking that idea, set basins of water around the tank and put towel around the tank, making sure that the towel is sitting in the water which acts like a wick, drawing the moisture up.

I found this explanation from a beer/wine making website. Pretty much the same concept because you are wanting to keep liquid at a certain temperature.

Everybody knows that as a liquid evaporates, its temperature drops. Why? Philadelphia refrigeration engineer Ike Ehrlich explained it this way: "Liquid evaporates in the presence of heat. But as it evaporates, it takes energy - in the form of heat - away from the surroundings. So the area very close to the evaporation will be cooler than the surrounding area."

It's why we get cold when we are wet. And why we sweat when it's hot. As the sweat evaporates, it uses this trick of nature to cool the surface of the body. You can use nature's tricks to keep your beer cool, too.

You will need a basin, bathtub, or even your brewpot, if it's big enough for your carboy to fit inside. Put a few inches of water in the basin, wrap the carboy in a big beach towel, place it in the basin, wet the towel, and let nature take its course. It helps to tie or rubber-band the towel in place around the neck of the carboy to keep it from slipping off.

The towel wicks the water up from the basin and it evaporates, lowering the temperature of your fermenting brew, depending on the relative humidity at the time.
Sandy Belle Sheeba - born 11/14/07 at 12:30 pm Linx Jasper
Reply With Quote
Old August 20th, 2009, 07:30 PM
Joe549 Joe549 is offline
Junior Member
Join Date: Feb 2009
Location: Kingston, ON Canada
Posts: 16
I'm going to try filling some balloons with water and freezing them and then put them into the tank, this should allow a slower temperature change.......
Reply With Quote

Thread Tools
Display Modes

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

Forum Terms of Use

  • All Bulletin Board Posts are for personal/non-commercial use only.
  • Self-promotion and/or promotion in general is prohibited.
  • Debate is healthy but profane and deliberately rude posts will be deleted.
  • Posters not following the rules will be banned at the Admins' discretion.
  • Read the Full Forum Rules

Forum Details

  • Powered by vBulletin® Version 3.8.8
    Copyright ©2000 - 2024, vBulletin Solutions, Inc.
    vBulletin Optimisation by vB Optimise (Reduced on this page: MySQL 0%).
  • All times are GMT -5. The time now is 02:41 AM.