how many of you keep your fans on 24/7?

any one? just started using a fan yesterday for my cherries tank (diy-ed the fan clip but haven't do up the power part )...

to my surprise temp actually dropped from 30 deg to 25 deg over about 6 - 8 hours! now hovering between 25 - 26 deg. pretty damn satisfied with the fan.

so yea, back to the main question... how many of you keep your fans on 24/7?

I do leave my fan on 24/7 but... result is not really fantastic. on a hot day it could be like 30 degree or a cool day 27-28degree.

can i know which or what fan you used? sounds like u bought each part separately. lol.

[EvolutionZ]

where you live? nowadays so hot, even with fan on 24/7 the lowest i can go for my tank is only 27.5c
what type of thermomether are you using?
i guess 25C achieved by fan during this warm period is rather immpossible..
maybe you want to use those mercury thermometer to get a accurate reading.

An aquarium fan that cools your water by 5 dgrees C is really amazing. If this is the case, there will no longer be a need to get a chiller.

It doesn't matter how many hours you leave your fan on. It doesn't cool your air temperature like that.

Originally Posted by Nikochan

I do leave my fan on 24/7 but... result is not really fantastic. on a hot day it could be like 30 degree or a cool day 27-28degree.

can i know which or what fan you used? sounds like u bought each part separately. lol.

i'm using a thermaltake 80mm fan i bought eons ago for my DIY PC hobby last time. rating is 0.70amp (very very powerful for an 80mm fan). its noisy but works great.

yea i diyed using a ac-dc adaptor and a self-made fan clip.

Originally Posted by EvolutionZ

where you live? nowadays so hot, even with fan on 24/7 the lowest i can go for my tank is only 27.5c
what type of thermomether are you using?
i guess 25C achieved by fan during this warm period is rather immpossible..
maybe you want to use those mercury thermometer to get a accurate reading.

live in bukit batok loh... i'm using a boyu submersible digital thermometer.. previously before i added the fan, temperature was a constant 30 deg. after i added the fan, the temperature hovers around 25 - 26 deg.

Originally Posted by Mizu World

An aquarium fan that cools your water by 5 dgrees C is really amazing. If this is the case, there will no longer be a need to get a chiller.

It doesn't matter how many hours you leave your fan on. It doesn't cool your air temperature like that.

i don't quite catch the last part what you're trying to say. care to share and explain? thks in advance!

i think it means that he doesnt lower the temp that much

[EvolutionZ]

im sorry but i think digital thermometer are mostly inaccurate.. try to get those mercury ones.. i seriously don't think fan can acctually get a tank down to 25C..
somemore this few weeks so damn hot.

[nasty12]

agree to Evo.. Usually fan can only bring the Temp down by 2-3 Degrees. 5 degrees for a fan seems kinda impossible. but if really can U can start selling DIY fans already=D

Originally Posted by EvolutionZ

im sorry but i think digital thermometer are mostly inaccurate.. try to get those mercury ones.. i seriously don't think fan can acctually get a tank down to 25C..
somemore this few weeks so damn hot.

well the water feels substantially cooler than what it was. it actually feels cold.. like air con cold. but yea fair enough, i'll try to get a mercury one when i don't feel too lazy :P

Originally Posted by nasty12

agree to Evo.. Usually fan can only bring the Temp down by 2-3 Degrees. 5 degrees for a fan seems kinda impossible. but if really can U can start selling DIY fans already=D

haha. no lah its more for personal use only. well but in my defence, the fan i use is of very high ampere (0.7a), about 3 x the current running thru an average 80mm fan at about 0.2 or 0.3 ampere.

hence, my fan has easily double the airflow/pressure over more common fans...

btw just to add, i'm using this fan for a 1ft tank only. those cheapo acrylic coloured top kind. so i honestly don't think its that impossible to lower the temp by 5 deg with a small tank + powerful fan. just my opinion, doesn't mean i'm right.

I turned on my 2 DIY PC fan 24/7. Temp nowadays is 28 degrees. In dec to feb, I can actually get 24 degrees. Now I am adding ice bottles every 1 to 2 hours to keep temp down to 26.