Can I lower water temp without a cooler?

[AlphaFish]

It gets really hot where I live right now. Like 39 degrees(celsius) a few days ago. House temp is also very hot, 26C. With the heater turned off, my tank still sits at about 26-27C. Yesterday I got some new rcs. I heard that they can live in up to 30C, but I want to get it to about 23-24 since that is the comfort temperature for everything in the tank. Could this be possible without a cooler?

 

[MacZ]

House temp is also very hot, 26C. With the heater turned off, my tank still sits at about 26-27C.

Completely fine, I keep my tanks at that temp year round (admittedly, I keep fish from the Rio Negro which is quite warm in comparison).
At about 30°C the dissolved oxygen drops dramatically, so you only have to keep the tank below that.

but I want to get it to about 23-24 since that is the comfort temperature for everything in the tank.

In the wild fish have to deal with day-time related fluctuations of temperature, aswell as seasonal fluctuations.

During summer you can just keep the temperature below the mentioned 30°C and then let it cool down again towards fall. Usually that triggers spawning activity as well.

 

[FishAndFishes]

It gets really hot where I live right now. Like 39 degrees(celsius) a few days ago. House temp is also very hot, 26C. With the heater turned off, my tank still sits at about 26-27C. Yesterday I got some new rcs. I heard that they can live in up to 30C, but I want to get it to about 23-24 since that is the comfort temperature for everything in the tank. Could this be possible without a cooler?

Hey,

I am having this problem right now.
I have one option, the one that I use.
I had to do 3 cold water changes yesterday. Also put some crushed ice, from pure spring water in there.

It's getting very annoying, and causing me so much stress, I have to keep checking the thermostats every few minutes.

Anyway, hope this helps. Best of luck!

 

[AlphaFish]

I see that you are new here, welcome. I will try using ice, but I can't do that many water changes since I use bottled water. Thanks!

 

[MacZ]

but I can't do that many water changes since I use bottled water.

That's pretty expensive long term and makes you dependend on that stuff, preventing for example emergency waterchanges. Better look for an alternative asap.

 

[AlphaFish]

My water comes from a well and is very, VERY hard. I don't remember for sure, but I think it also had a lot of calcium or some other mineral. I don't think dechlorinators would be enough.

 

[MrFoo]

I like to fill one of those big soda bottles with water, freeze it, and stick it in the tank for a bit when I need to lower the temp. Might be worth trying to see how much it can bring the temp down

 

[AlphaFish]

Welcome to Fishlore! Sounds good, thanks!

 

[MacZ]

My water comes from a well and is very, VERY hard. I don't remember for sure, but I think it also had a lot of calcium or some other mineral. I don't think dechlorinators would be enough.

I can only advise to take a look at RO-units. They are affordable for home use nowerdays and will pay off quickly.

 

[AlphaFish]

I did think about those in the past. Though they are not very affordable in my country. Cost-wise, I'm better off using bottled water like I currently am. Maybe it's worth it for the quality though.

 

[Manjit]

Shift to aquarium to a cooler room... away from sunlight...
Add more air stones...
Freeze some water in a bottle and put it inside the aquarium....

 

[Azedenkae]

You can get an aquarium fan. Something like this: https://www.amazon.com/LONDAFISH-Aquarium-Chillers-Cooling-Marine/dp/B07FCJGZ4H/.

Worked well for me to keep my tank cool enough in the past, and that's with it being in the garage where temps can get to like 40 celcius.

 

[WRWAquarium]

Frozen bottles are good or those freezer packs that keep cool bags cold. I've started using those this summer as well.