Recomended CFM?

[myreef]

i am about to buy 2 fans. Here is a link to the ones I am going to buy... http://hosfelt.com/Fans/115vac.htm

Look at the low noise fans near the bottom...102 CFM and only 41 DB for $11.95 per fan. HTH

 

[JD]

myreef, Thanks for the heads up, I called Hosfelt and guess what?!? SOLD OUT!!!! With no reordering anytime soon! It figures!

 

[Nathan1]

Orion makes quiet fans. Do a search.

Also, your mission is to cool your tank water, not the air inside the hood nor the bulbs. So make sure to aim your fans down onto the water, and blowing *IN* not out, since outward fans cannot be directed to blow on the water surface and they rust faster than fans blowing in.

-Nathan

 

[JD]

Can anyone out there give me an idea as to how much air flow (CFM) I need to cool my canopy? Im probobly gonna use 2 fans, one blowing in the other blowing out with an open back. MH about 7" above the surface.
Specs:
36" x 18" x 12" tall
1 - 250W MH
1 - 110W PC
1 - 55W pc Actinic

Thanks!