Kind of a stupid q?

[davidm199]

this is kind of a stupid questionbut here goes-on my new tank i going to put a couple 3in cokputer fans along the back of the canopy. But do i want the fans to blow air in over the water or pull the hot out from about the water. Does it matter or is one better.
thanks

 

[xroads]

Blowing them over will cool it better, but cause more evaporation.

 

[annamarie421]

I've heard that sucking air out can shorten the life of the fan (no personal experience on that) because it will get more salt deposits and what not. I hear of lots of people doing one blowing in and one sucking air out.
hth,
Anna

 

[Atticus]

Blowing in aids in evap, but also keeps your fan from sucking salt filled air. This will keep your fan quieter and make it last longer.

 

[waverz]

I would put a fan blowing in at one end and a fan blowing out at the other end....

 

[js_bass]

IF the fans blows towards it. And there is a lid on the the front ( if the fan is in the back) then there will be alot of condensation on the lid. Which will lead to salt creep. IF that makes sense, not a big deal just wanted to let you know.

 

[jtesdall]

and keep the salt water from ruining the fans

 

[davidm199]

alright thanks, i was thinking of having them blow in. thats the way i though it would work better

 

[jbrunken]

I just use the $7 clip on type fans from Menards. I take off the clip part and attach them to my canopy with large zip ties. They are quiet and they move a lot of air.

Best of all, when they go bad, it's only $7 bucks to replace them locally.

-JB

 

[Atticus]

If you want to put a piece of glass under your lights you can run a push pull method and move more air without ruining your fans. You can also just put a fan blowing on the sump.

 

[ReefFreak3652]

I hear the cokputer fans run longer than normal ones anyway though. Ok sorry for the smarta@@ comment.
But seriously, ive found blowing the fan towards the lights keeps the temp cooler then blowing it out, but then..i only have one fan.