Breaker4show Posted August 21, 2004 Share Posted August 21, 2004 I need a fan for my 5.5 gallon and was looking around and found one at the local computer store! it was 26cfm's and was 80 mm! It only cost $10! is that powerful to cool off the tank with 2-20 watt bulbs and possibly add another 2-10 watt bulbs ? thanks, nick Link to comment
BillyBlanko Posted August 21, 2004 Share Posted August 21, 2004 with fans & cooling it really does come down to trial & error ......obviusly the best way to have fans fitted is to have 2 fans opposing eachother underneath your lighting ....one on either end of your tank , have 1 blowing accross to the otherside & have the other 1 sucking out ......this works by speeding up the evaporation process which inturn cools down the tank . i use this method in my full size reeftank , but in nano`s with there not being a lot of room its just usually 2 fans sucking out of the hood .....this will remove alot of the heat buildup from the lights . scott Link to comment
Rikko Posted August 23, 2004 Share Posted August 23, 2004 Get yourself the biggest, cheapest fan you can mount on the canopy (or 2, for that matter). Power them with a power supply that can push the max that the fan takes. Now get yourself a rheostat and wire that in and you have a variable rate fan that you can tweak as needed. In the summer months, or perhaps when your bulbs age and start to warm up a bit (or whatever), you can turn down the rheostat a bit and get your fan moving as higher RPMs - in the winter, turn it up so the fan doesn't cause as much unnecessary evaporation. Link to comment
shawnz28 Posted August 23, 2004 Share Posted August 23, 2004 Might want to check too if you already did not know. Most computer fans are DC and will need either an old computer power supply or an AC adapter to power them Link to comment
carlosrivi Posted August 24, 2004 Share Posted August 24, 2004 Try this link for powerful quiet fans SiletXFans Link to comment
carlosrivi Posted August 24, 2004 Share Posted August 24, 2004 This is a US distributor for the fans Silenx 60mm fans Link to comment
scitz Posted August 24, 2004 Share Posted August 24, 2004 www.svc.com for all your fan needs they are made for computers, and are 12v DC, but with a DC converter and some simple wiring you can make it work. I currently have a 92mm fan pushing about 117 cfm in my computer case right now, but they come in sized from around 40mm up to 120mm or more. While you are at it, pick up some led's or cold cathode tubes for moonlighting (u can even get them sound activated, haha) Link to comment
dyceskynes Posted August 24, 2004 Share Posted August 24, 2004 10 is a but much for a fan unless it is a vantec or panflo Link to comment
scitz Posted August 24, 2004 Share Posted August 24, 2004 Also check out the bad-ass fan grills Note, pay attention to the dBa (sound level) rating, the higher it is the louder the fan is. That 92mm fan i have pushes about 58 dBa and sounds like a vacuum cleaner. ~20 dBa is basically silent. Larger fans are generally quieter and push more air than smaller fans (slower rpms = less turbulance). Their are automatic temp sensing fans that adjust rpms automatically, check product info. Not sure how usefull these would be on a tank though. Link to comment
MattGecko Posted August 25, 2004 Share Posted August 25, 2004 The silent fans don't move much air, check the Air flow (13 CFM) Best bet is find a fan above 25 CFM and use an adjustable power supply to adjust the fan speed to desired flow. 60mm http://www.subzeropc.com/store/fan60253b.htm 80mm http://www.subzeropc.com/store/fan80253b.htm Link to comment
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