Fans To Cool The Water...

[garybuk]

I had the problem of my tank too hot was @ 28C , iv added to pc fans blowing stright down in to the tank.
What do i have to watch with the pc fans my water is like ripperling a little is this ok??? and its only gone down 1C after about 1hour... Imay have to take my lid off soon im thinking???

 

[Betta5]

fans are to cool the air i think, to cool the water you need somthing like a chiller, what is 28C in F?

is 28 82F? if yes thats not that bad anf you got it to 27 which is about 80ish i think thats even better.

 

[garybuk]

fans are to cool the air i think, to cool the water you need somthing like a chiller, what is 28C in F?

is 28 82F? if yes thats not that bad anf you got it to 27 which is about 80ish i think thats even better.

Ahh i dont really wana spend out on a chiller the fans are working its not at 26C witch is 78F whats the ideal temp for marine with live rock and a few months fish...

 

[Betta5]

was that now at 26? as i was going to say even 27 is good and you wouldnt need a chiller, im worried about summer when my tanks up

 

[garybuk]

was that now at 26? as i was going to say even 27 is good and you wouldnt need a chiller, im worried about summer when my tanks up

Yeah its at 26c witch is 78F whats the best temp for marine 25C? tho these fans are really noises lol... yah summer is going be hard to keep the temp down.... my t5s get hot under the hood , may have to do some diy..

 

[Betta5]

i think 26 is perfect, anywhere from 78-82F is perfect i think, are you thinking of going open top? i am, a nice t5 luminaire is always a good add to a tank

 

[andywg]

fans are to cool the air i think, to cool the water you need somthing like a chiller, what is 28C in F?

is 28 82F? if yes thats not that bad anf you got it to 27 which is about 80ish i think thats even better.

The fans are to cool by evaporation. The warmer moist air above the tank is pulled out and replaced with cooler dryer air which allows more water to evaporate, thus cooling the tank.

 

[garybuk]

fans are to cool the air i think, to cool the water you need somthing like a chiller, what is 28C in F?

is 28 82F? if yes thats not that bad anf you got it to 27 which is about 80ish i think thats even better.

The fans are to cool by evaporation. The warmer moist air above the tank is pulled out and replaced with cooler dryer air which allows more water to evaporate, thus cooling the tank.

Ohh So shud i be pusing air in or out? or both??? how fast will the water evaporate?

 

[@ombomb]

you want air mobvement across the surface of the water, so blow air in

the rate of evapouration will depend on the speed of the air / temp / humidity / surface agitation so really it's impossible to say, just keep an eye on it and keep topping up with RO water as required

 

[garybuk]

you want air mobvement across the surface of the water, so blow air in

the rate of evapouration will depend on the speed of the air / temp / humidity / surface agitation so really it's impossible to say, just keep an eye on it and keep topping up with RO water as required

Thanks! soo how come its hard to keep the water temp down in marine??

 

[ox5477]

you want air mobvement across the surface of the water, so blow air in

the rate of evapouration will depend on the speed of the air / temp / humidity / surface agitation so really it's impossible to say, just keep an eye on it and keep topping up with RO water as required

Thanks! soo how come its hard to keep the water temp down in marine??

usually the lights. many reefs require large amounts of light for corals, so the high intensity lights (normally metal halides) blat out large amounts of heat. If the hood is enclosed over the tank, the heat is pushed into the water and hence the heat goes up. Having either an open hood or good cfm's of air flowing through the hood will mitigate large temp variances from when the lights are off and on

 

[SkiFletch]

Also, clogged powerheads will heat up the tank easily... cleaning their inlet strainers causes them to create less heat.

If you have multiple fans, a push/pull arrangement is good for cooling. And yes, rippling water surface is a great way to both increase evaporation (cooling), and to increase gas exchange to keep O2 high and CO2 low (both good )

 

[garybuk]

Also, clogged powerheads will heat up the tank easily... cleaning their inlet strainers causes them to create less heat.

If you have multiple fans, a push/pull arrangement is good for cooling. And yes, rippling water surface is a great way to both increase evaporation (cooling), and to increase gas exchange to keep O2 high and CO2 low (both good )

Thanks its a brand new power head! its not at 23c too cold now