[Bent17]

Is there something I can do to reduce tank temperatures instead of buying a chiller? Really dont want to go down that road. No top covers on the aquarium

 

[ckbernie]

Cooling by evaporation is the next road you can consider.

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[Bent17]

What does that consist of? fans?

 

[Plinkploop]

Yea, a fan blowing across the top of your tank

 

[Bent17]

Yea, a fan blowing across the top of your tank

OK cool didnt think it works much..

 

[Plinkploop]

It does work. Not a good as a functioning chiller but it definitely works. Just be prepared for top offs.

 

[ckbernie]

OK cool didnt think it works much..

Don't look down on water, the later heat capacity of water is huge. It helps in cooling your car engine in the radiator.

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[Plinkploop]

If you're keeping sensitive critters be very careful adding cool water. I've had fish stress and develop infections from the shock of rapidly changing temps.

 

[minorhero]

A fan on top of the tank blowing the water will reduce the temperature by at least 6 degrees F below room ambient. I know from experience doing it in my newt tank. It also increases evaporation at least 3 times what it would be. Its not a radiator (which can only reduce temperature to ambient) but rather a method of refrigeration. The water evaporating is taking the heat with it.

 

[Bent17]

Do you have a photo of your setup?

 

[minorhero]

Do you have a photo of your setup?

Here is a picture that shows the fan. Using magnets its connected to a steel tie down bracket I just bent to be at the right angle.

Picture of the overall setup for what its worth.

 

[Bent17]

So just one fan would do the trick? What speed should it run at? are there special fans for this?

Guess they are quite noisy too?

 

[minorhero]

So just one fan would do the trick? What speed should it run at? are there special fans for this?

My tank is a 30 gallon, not sure how big a tank you are working with. If its a lot bigger or considerably longer, you might need more then one fan.

The specific fan I used is this one:

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I run it on 'low' speed. Its pretty quiet, I can't hear it at all unless I move my head to within a foot of the fan and then listen carefully for it. Certainly its not as noisy as my cascade canister filter running on this tank.

 

[Plinkploop]

Lol I used to run computer fans. The one suggested looks a lot better than what I was doing 😂 might even get one myself, my ceiling fan isn't quite up to the task.

 

[Bent17]

haha tanks guys, as the aquarium is in the living room and I deffo dont want a loud humming noise especially when we have people over

 

[saltdiscus]

Am I missing something here?I just turn my ac on and all my tanks are cooled at same time.

 

[Plinkploop]

Am I missing something here?I just turn my ac on and all my tanks are cooled at same time.

Yes, you missed the mark there. Some of us don't have ac. Some of us prefer not to use it. This as our method of dealing with it.

 

[minorhero]

Am I missing something here?I just turn my ac on and all my tanks are cooled at same time.

Additionally some critters require temperatures below say 72 degrees. My newts for example are kept in the mid to high 60s. Cooling my whole house to that level for one tank is not practical.

 

[TechnoFish]

A fan on top of the tank blowing the water will reduce the temperature by at least 6 degrees F below room ambient. I know from experience doing it in my newt tank. It also increases evaporation at least 3 times what it would be. Its not a radiator (which can only reduce temperature to ambient) but rather a method of refrigeration. The water evaporating is taking the heat with it.

It makes sense now that I think about it, but I really hadn't considered just how effective it could be!

 

[Bent17]

Thanks for your input guys ill see how if goes with the fans.

For a 200L tank one fan is enough or two?

Also any experience on super quiet fans tried and tested??