Is 84 too warm? Tanks Running Hot From UV -

[kendragon]

dr exum Learn to read your fish. They will tell you if it's not right. Higher temps may cause stress resulting in red fin/tail rays, fin rot, gasping.
Turning the unit off and on is not good for the unit itself. The cycling from hot and cold will degrade the seals and lamps. Build up on the quartz sleeve will also occur lowering its transmittance. If you have one of those fancy UV tracking hours, unplugging it will blank out the odometer.
I suggest to let it burn.....report back in the Summer. May have to run one instead of two or may even none during Summertime.

 

[dr exum]

dr exum Learn to read your fish. They will tell you if it's not right. Higher temps may cause stress resulting in red fin/tail rays, fin rot, gasping.
Turning the unit off and on is not good for the unit itself. The cycling from hot and cold will degrade the seals and lamps. Build up on the quartz sleeve will also occur lowering its transmittance. If you have one of those fancy UV tracking hours, unplugging it will blank out the odometer.
I suggest to let it burn.....report back in the Summer. May have to run one instead of two or may even none during Summertime.

good tip!

don’t want to hurt these units - too much invested

May increase air bubbles via larger air pump

the smaller tanks only running 1 - 57watt aqua ultraviolet - vs the 2 - 90watt on the larger system

it’s only 83 / 84

 

[LBDave]

Seems my 3 bigger tanks running 83-85 degrees with no heater running due to uv/room temp

2 tanks have the aqua ultraviolet UV (didn’t think it would heat) and bigger tank is the pro maxx ultraviolet (supposed to run hott)

i’ve been cooling the tanks with cool water too keep temps at 80-81 / lots of air running as well -

wondering if folks have cooling ideas or just let them be?

any downsides / upsides?

thanks all!

My tanks get pretty warm in summer. Sometimes up to 87 or 88. No problem with bass or oscars.
Running fans over the surface of the water in tank and sump may help a bit.

 

[neutrino]

Using fans to cool your water is real and based on physics, since evaporation uses up heat energy. Years ago I spent time researching and calculating numbers for an aquarium and posted it all in a thread (on cyphos.com, but that forum is gone now along with all that work). I'm not an engineer, so there are probably more technical formulas and precise figures than mine were, but some of our hot climate forum members tried it-- opening their lids, blowing fans over their water-- and it worked for them. Heat calories per gram of water evaporated (often listed as 540 calories per gram) is variable. For example, the lower the atmospheric humidity the greater the remaining water vapor absorbing capacity (which is why dry heat feels cooler and drier than high humidity at the same temperature). So effectiveness will vary with your local conditions.

 

[kendragon]

 

[dr exum]

thanks guys for input!

 

[Tj203]

Those Temps are not bad but if it dose get near 90 the 2 thinkgs I have done is run the fan across top and I would fill 2 liter soda bottles with water and freeze them and then float them on top. The fans work very well for me I also aim a wavemaker at the Surface. Hope the fish are doing good!

 

[dr exum]

Those Temps are not bad but if it dose get near 90 the 2 thinkgs I have done is run the fan across top and I would fill 2 liter soda bottles with water and freeze them and then float them on top. The fans work very well for me I also aim a wavemaker at the Surface. Hope the fish are doing good!

wave maker, good tip!

bass are good! need to find some space in stands for de nitrator for smaller tanks ?

i think 85 is the warmest i’ve seen out of the tank with the pro max 90w on it....

it’s not too warm

 

[seegs71]

I had a similar issue with higher temps my reef tank running metal halides and I was able to install an exhaust fan in the fish room and pull air out, I also use a few small fans that run on the top of the tank and blow across the water - seems to help keep things cooler - also if there are heater vents for your room nearby shut those down - you would think a larger tank would hold a more stable temp.80+ is a warm environment and could stress the fish out

 

[dr exum]

letting is go - we’ll see ...

would think it would top off and stabilize

going to remove the sump lids -

big bass little more aggressive and getting into the breeding behavior-