30c temperature for a FOWLR tank. Is it safe?

[davidms209]

I put my 550L tank in a non AC room and away from direct sunlight, but i never thought the water temp could hit 30~31C. I live in a tropical country, so i assume the temp will stay at that range for the whole year.

Whats the impact of having such high temp on a fowlr tank? I have a clownfish in it atm, but it's eating normally and doesnt really show any sign of stress. The liverock shows some bleaching, but im not sure if it's caused by the light burn or the temp. I do notice a lil bit of Ca precipitation on the tank glass (although Ca and KH parameter are still in normal range), but again im not sure if it's caused by the temp or by low Mg (i dont have the test kit yet). Fyi, i use fresh seawater for my aquarium.

Is there any other way to lower the temp besides getting a chiller or moving the whole tank? An adequate size chiller cost so much money here i could buy another tank of the same size

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[mcgyvr]

In general the accepted range of temperatures for a saltwater tank is like 76-83degF (24.5-28.3C)
31deg C is really too much... Some tanks do drift above the range for some portion of the day (when lights on,etc..) but in general its best to keep it in the range at all times..

Your tank will always be at least same temperature of the room and will warm up past that depending on the heat that your pumps, lights,etc... add to that.. (A 50W pump running all the time is just like having a 50W heater in your tank running all the time)..
Some use LEDs just because they put out less heat than Metal Halide or T5 lights,etc... Some use external pumps or get better more efficient pumps to reduce tank temps,etc..

Measure the room.. Then look at whats in the water or above it putting more "energy/heat" into the water.. Reduce that if possible or look into a chiller or move the whole tank to a room with a cooler temp (ambient temperature)

Sometimes even a fan blowing across the surface can cause the temps to drop by increasing the evaporation rate and evaporation causes cooling..
But that only works a bit.. thats unlikely to be sufficient for you...

 

[davidms209]

Thanks for the advice. I already have led installed. I do use 2 large pumps in my aquarium: one as a return pump, the other one is for my skimmer, so those might exaggerate the problem. Moving the aquarium is not an option, neither is getting an aircond (theoretically i could, but it will cost more money than just getting a chiller). I guess a decent chiller is the only option for me. Thank you again for the information

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[Cancun]

Yea I totally agree....I keep mine stable at 78 degrees....

 

[davidms209]

Btw, can i use multiple underpowered chiller instead of one large chiller? I'm on tight budget rn, so i can only afford a chiller that's less than suitable size

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[mcgyvr]

Btw, can i use multiple underpowered chiller instead of one large chiller? I'm on tight budget rn, so i can only afford a chiller that's less than suitable size

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yes you can use 2 smaller ones..

 

[monkeysee1]

I keep mine at 79-80F (27C) with NO issues.
Keep in mind - the REAL enemy of your fish is TEMPERATURE FLUCTUATION (drastic swings in a short period of time) as opposed to a consistent SLIGHTLY HIGHER temperature, like yours.

Is there any other way to lower the temp besides getting a chiller or moving the whole tank? An adequate size chiller cost so much money here i could buy another tank of the same size

Yes, keep your house shades drawn and your windows and doors closed and sealed!

 

[Dmorty217]

Higher temps mean less dissolved O2 in the water for the fish.