A relatively cheap way to keep your aquarium cool

[Blue World Aquariums]

It can be surprising how effective a fan can be at cooling your water temperature, especially when positioned between your water surface and light source.

If you don't think you need a chiller, but would like to lower your temps a few degrees, this might be your economical and aesthetically pleasing solution.

Azoo Twin Fans $39.99



Azoo Quad Fans $59.99

[lastlight]

I have the 4-fan and I would replace it in a heartbeat if it broke on me. Even on the hottest days the thing keep my reef a perfect 79.

[Blue World Aquariums]

Thanks for chiming in, Brett.

They do have one weakness, though. The clamps won't fit on all aquarium frames. I'll take a measurement at the shop tomorrow.

[Jaws]

What's the noise level like?

[paddyob]

I paid $10 for an 6" fan.... it does not have fancy clips but sits nicely on my filter.... blows over surface and works like a charm.

In My apartment the tank used to hit 86C in summer but... now always under 80C.

[lastlight]

They certainly aren't silent but they also aren't running all the time. Mine run for about 5 minutes every hour I'd guess? Haven't exactly paid too much attention since the noise isn't a huge deal to me. Having two kids may play a part in that!

[Blue World Aquariums]

The tank mounts are 1/2" wide exactly.

[Canadian]

I got one of these from Spencer and it has dropped my tank temp from ~85 to 78-79 with the warmer weather we've had here lately.

I have the 2 fan unit on my 50 gallon.