Tank too hot?

[ambrosia04]

I have a 105L planted aquarium
My water movement comes from my filter and it's not too strong.
I have 12 boraras merah, 7 gastrodermus nanus, 3 amano shrimp, 13 neocaridina davidi and 3 clithon corona.
My floaters are like 70-80% of the surface.
RN the temp of the tank is 28.1ºC and outside it's 35ºC.
It's not on direct sunlight and I just removed the lid to let it evaporate a bit but tonight I'll leave it closed bc I' scared of them jumping out.
My fish seem happy and eating well, I kno0w they are tropical fish and they like warmer water, but I'm a bit afraid it could shorten their lifespans and make them miserable

 

[GaryE]

There's not much you can do, short of air conditioning the entire room. That can be an expensive proposition in some countries.

I do remember the heat in Spain. It tells anyone who doesn't look at the world how close you are to Africa.

When it would heat up at my old home in Montreal, we could get 3 weeks with tanks up to 30. I became extras cautious about never missing water changes, and watching overfeeding as unconsumed food causes a loss of oxygen in the water. Even my killies from 20 degree waters would make it through, but it was rough on them. Heatwaves are a good argument for avoiding stocking calculator estimates, and always staying under by as much as you can stand.

 

[JCinPA]

I won’t include links from the U.S. because you’ll have to source them in the Eurozone, but there are purpose-made water chillers for aquarium use which could help you without installing air conditioning in your fish room.

You’d have to do an economic break even analysis between the room air conditioner and the aquarium cooler unit, so it will depend on the size of your tank and the difference between ambient and desired water temperature.

Good luck!

 

[bgarthe]

And……realize that they probably can take spells of warmer water temps, but…..during such times, toss an air stone or two to keep the very important oxygen levels adequate. Warmer water holds less O2 than cooler water. Air stones will agitate the surface and in so doing, will increase the O2 in the water.

Finally…..”my fish seem happy and eating well” in warm water is preferable to unhappy poorly eating fish in cooler water. Healthy fish is THE most important thing whether they live say….for 38 months or 40 months. The higher temps equaling shorter life spans is in reference (as I understand it) to long term higher temps, not a few days here and there.

 

[Innesfan]

How many months a year do you get these temps? When you say "outside" the temp is 35C do you mean outdoors or outside the tank in the room?

 

[ambrosia04]

How many months a year do you get these temps? When you say "outside" the temp is 35C do you mean outdoors or outside the tank in the room?

We get most heat waves and sand from the Sahara like from June to mid September (with global warming even more lately...), and inside the houses is a bit cooler (cool mediterranian architecture haha) but yeah, we can reach up to 40-ish ºC on the street
I do have an AC where the fish are and it's where I work, so when the temps go up more I'll just turn on the AC.
I let the feeding trapdoor in the lid open so it could have a bit of evaporation and rn is at 27.6ºC, but when the lights turn on it'll probably go to 28 again
Also, my shrimps seem to be breeding so I have hope they won't suffer much hahaha

 

[GaryE]

I couldn't get habitat info for B. merah, but maculatus runs to 26 and brigittae to 28 in nature. Gastrodermus nanus is listed at a top range of 26. That's not ideal, but they should survive.

Shrimp? Why do people play with food? I can't help there...

 

[Naughts]

when the lights turn on it'll probably go to 28 again

Fish don’t need the lights, they are just for our purposes. Leave them off until you’re using the A/C.

 

[ambrosia04]

Fish don’t need the lights, they are just for our purposes. Leave them off until you’re using the A/C.

I don't want the plants to start dying and having an ammonia spike tho hahaha

 

[seangee]

My tanks typically reach the 30s sometime in June and stay there till late September or early Oct. I used to worry about it but they have been fine so far. This year the temp spiked earlier but I installed aircon - for me not the fish
Shrimps metabolism increases when temperatures rise. They grow faster, breed more (and earlier, and die sooner. But you will likely end the summer with many more shrimp than you started with.