Too hot to handle

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zzlover

Feeder Fish
MFK Member
Jul 16, 2017
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Philippines
I bought an aquarium heater lastweek and then I used it 24/7, and i noticed that the tank's temperature was too hot and im worried for my fh because i dont have any idea if he can tolerate that hot temperature. I've set my heater to 30 degrees celsius but then the tanks temp. was 40 above it's not warm, its freakin hot anyone? pls help what shud i do? btw im using a glass thermometer to measure my tank's temp is it accurate??
 
If the water feels hot to your hand then the temp is too high.Water that is in the eighty degree range does not even feel hot to the touch.It sounds as if you do not have a thermostatic heater which you can dial or set to certain temporature....you need one of those.If you do have one then it is faulty and should be replaced.
 
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If you set your heater to 30 C (86 F) and the tank is really 40 C (104 F), then here's something to try.

1) Put a thermometer in the water and get the exact temperature. Let's call it X degrees. (X is whatever the thermometer says, so 40 C, or 38 C or whatever it really says is what we mean by X.) That's the "official" temperature.

2) Next, confirm the heater knows when to come and off. Set the heater in the tank to 2 degrees C over X. (If X was 40, make the heater set to 42.) Does the heater in the tank come on?

Set if for 2 degrees under X. Does it go off?

If the heater does those things correctly, it's not defective. That means when it was set to 30 C, it was likely not coming on above 30 C.

If it fails either test, the heater is defective and needs to be replaced.

3) If the heater is not defective, something else is heating your tank, not the heater.

For example, the room is 40 C degrees and makes the tank 40 C. Or the room is well over 30 C and you have a large pump and a UV filter adding heat causing the tank to be 40 C.

Or your tank is getting direct sunlight all day and combined with the room temperature and things inside the tank, it ends up going up to 40 C.

It's not unusual to have a broken heater. It will likely be the problem. But a very warm room with a pump can get pretty hot as well.

One year, it got up to 115 outside and it was 93 inside my house. Yow!! It's hard to keep a tank under 100 in that situation.
 
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If you set your heater to 30 C (86 F) and the tank is really 40 C (104 F), then here's something to try.

1) Put a thermometer in the water and get the exact temperature. Let's call it X degrees. (X is whatever the thermometer says, so 40 C, or 38 C or whatever it really says is what we mean by X.) That's the "official" temperature.

2) Next, confirm the heater knows when to come and off. Set the heater in the tank to 2 degrees C over X. (If X was 40, make the heater set to 42.) Does the heater in the tank come on?

Set if for 2 degrees under X. Does it go off?

If the heater does those things correctly, it's not defective. That means when it was set to 30 C, it was likely not coming on above 30 C.

If it fails either test, the heater is defective and needs to be replaced.

3) If the heater is not defective, something else is heating your tank, not the heater.

For example, the room is 40 C degrees and makes the tank 40 C. Or the room is well over 30 C and you have a large pump and a UV filter adding heat causing the tank to be 40 C.

Or your tank is getting direct sunlight all day and combined with the room temperature and things inside the tank, it ends up going up to 40 C.

It's not unusual to have a broken heater. It will likely be the problem. But a very warm room with a pump can get pretty hot as well.

One year, it got up to 115 outside and it was 93 inside my house. Yow!! It's hard to keep a tank under 100 in that situation.
ahh ok bro i get it i'll try it later when i arrive home because i've tried lowering its temperature to 20 degrees celsius and im relieved because the tank was not that hot anymore the next day. But i'll try what you said bro ty for giving wonderful idea
 
If the water feels hot to your hand then the temp is too high.Water that is in the eighty degree range does not even feel hot to the touch.It sounds as if you do not have a thermostatic heater which you can dial or set to certain temporature....you need one of those.If you do have one then it is faulty and should be replaced.
dude btw are heaters recommended to turn on 24/7? as it has an automatic turn off feature? or shud i use it only if its rainy or cold weather? pls reply to this comment ty
 
dude btw are heaters recommended to turn on 24/7? as it has an automatic turn off feature? or shud i use it only if its rainy or cold weather? pls reply to this comment ty
The thermostatic heaters self adjust to the water temperature and pretty much go into an off mode when the water is warm enough due to surrounding conditions.I unplug mine during this time of year as my tank area is constantly warm enough that I dont need them plugged in and drawing any current.
 
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