how can i keep the water in my fish tank cool i want to keep it about 18oc but it wont stay below 26oc?

Answer 1

The only long term answer to cooling a tank that much is a chiiller. They aren't cheap, but it will do the job for you.

MM

Answer 2

Here's a few things you can try:

Buy an air conditioner! Sometimes this is the only solution.
Aerate with a strong air pump! This will help to increase the exchange of gases at the waters surface, thereby helping to raise DO levels.

It will also aid heat exchange at the surface.
If your aquarium is well-covered, open the covers on your tank, and place nylon netting over the openings to prevent fish from jumping out. This allows heat to escape. You can aid this process further by directing the air-flow of a small fan across the top of the tank.

If your aquarium equipment is in a closed cabinet stand below your fish tank, open the cabinet doors and place a fan circulating air into the cabinet area to allow heat created from pumps to escape.

Purchase a small canister filter designed with the motor on top (see our line of Eheim canister filters for example) and immerse the lower half of the canister in a bucket of ice to create a (relatively) inexpensive quick-fix chiller. Replace the ice as needed but please be careful! This method is tricky and requires some experimentation to prevent the tank temperature from fluctuating too rapidly (a major source of stress leading to fish diseases). Monitor the temperature of your aquarium carefully until you get the ice replacement times down to a science to maintain a stable temperature.

Close the shades on windows in the room. Even indirect sunlight will raise the room temperature by a degree or two and every little bit helps. You can also reduce the amount of time the aquarium lights are on. The tank lights contribute greatly to higher water temperatures. Don't leave the lights off all the time though. That's bad for your fish too! If you have a freshwater planted aquarium, which requires at least 8 hours of light per day, you may have no choice but to buy an air conditioner or a chiller to solve your heat problem.

Nemo

Answer 3

First, you have to find out why your tank is being heated up. Some things you can change, others you cannot.

Lighting is one common contributor to aquarium heat. If you want to cool it down a little, a fan can help. Have it blow across the lighting.

You may also be able to cool the tank with a fan by having it blow across the surface of the water. This will result in more evaporation, but will cool the water down a little.

The last option is a chiller. It passes water through it and cools it down, and puts the water back into the sump/tank. Chillers are pretty pricey, though, and may only be a last resort.

Answer 4

kepp the lights off during the day and only have them on for a short time in the evening, and invest in a good thermostat, that you can regulate the temperature, some of the good ones have an adjustment dial on the top to set the temperature.
Also, make sure that the fish you have will not be affected by the lower temperature.

Answer 5

Open the top to allow the heat out.
Don't put on the tank lights.
Train a fan on the tank to cool it.
Some people will put picnic freezer blocks in the tank to cool it down.

Oh, if you have fish that jump....use mesh!!
Shouldn't need to unplug your tank heater as the thermostat should have kicked in.

Hope all goes well with the fishy friends.

Answer 6

fans will help alot. when i was part of a group project raising trout fry we used a powerhead to pump water through a length of flexible tubing that was in a cooler full of ice, worked pretty well but was somewhat unstable because once the ice all melted(had to be refilled daily) the temp. would rise.

Answer 7

Try a specialist shop, 'chillers' are available usually for marine tanks.

Answer 8

switch off the electric


it will cool down then