Recommendation for fan for covered hood

**Victor Cheong** · 3rd Mar 2015, 08:51

Dear all

Is there suitable fan for covered hood? TIA.

**fireblade** · 3rd Mar 2015, 10:50

PC fan? or mount the fan on the hood? how does your hood looks like?

**Victor Cheong** · 3rd Mar 2015, 11:26

Should be mounting the fan on hood. The hood is a piece of acrylic covering the length of the tank with a 2.5 inch gap along the length of the tank.

**fireblade** · 3rd Mar 2015, 11:31

Acrylic might not be strong enough... maybe can show us a piture how your hood looks like..

**Victor Cheong** · 3rd Mar 2015, 12:28

Will be mounting at side of the tank.

**Ipit** · 4th Mar 2015, 15:32

i am using ANS 3000 fan, i do away with the mounts entirely. I mounted it to curtain rails that runs across my tank like so:

**Urban Aquaria** · 4th Mar 2015, 17:15

If there is a small gap between the hood and the tank, can try those "vortex" ducted fans with a low-profile nozzle that can be directed into the tank... like the ones from Up Aqua/Aqua World or Dymax, some examples:

http://freshnmarine.com.sg/estore/pr...oducts_id=4063

http://freshnmarine.com.sg/estore/pr...oducts_id=4358

There are many other brands with similar designs available at most LFS, can just shop around to find them.

**Ipit** · 5th Mar 2015, 09:57

I have tried those fans before and honestly they are noisy, depending on where you place them - mine was placed at the back of the tank which is against the wall and given the enclosed space the sound really is emplified hahaha.

**Urban Aquaria** · 5th Mar 2015, 11:50

Yeah, the ducted fans are noisy... more so due to the funnel design, it really amplify the air flow noise, like a hairdryer sound effect.

Though i have connected such fans to adjustable AC/DC 12V adaptors before, and if set at 9V or 7.5V, they become alot quieter (fan speed will also decrease too, but can still create sufficient cooling for smaller tanks).