Tank Temp

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LiuHsi

Feeder Fish
MFK Member
Aug 15, 2006
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I have a 125 g tank, 5' long.

I have 1 Rena 300 w heater in my w/d set at 82 F

I have:

4 dat
1 aro
1 pleco
2 bichir
1 parrot

Tank Temp is reading at 79 F

Is this normal? or something is wrong with my heater? Heater is like 2 month old only.

I had previous heater gone wild experience.. water was cooked up to 92 F with 2 heaters.. now I am sticking with only one at the moment.

any advise would be appreciated.

I think my temp is ok for the fish.. what do you guys think?

Thanks
 
it will depend on where your thermometer is in the tank. sounds alright though bud
 
Neither thermometers nor heaters are calibrated when they leave the factory. That is why there is a discrepancy between the two. Most heater manufactures no longer have a temp guage on the dial because there have been too many returns. Additionally, as a heater ages, corrosion builds up in the contacts causing added resistance. This in turn causes the output to vary from the original setting. Also, as the heating element vaporises (black or metalic color on the glass) the output will also vary. Get another thermometer as a second opinion, and then forget that there was ever a temp setting on your heater. If it is not warm enough, just turn it up.

By the way, my tanks often run in the ninties. It isn't a problem as long as you keep air stones running. The major problem with high temp is O2 saturation being lower. Metabolism is higher in the fish (good for grow out) and in parasites (shorter life span).
 
CHOMPERS;579409; said:
Neither thermometers nor heaters are calibrated when they leave the factory. That is why there is a discrepancy between the two. Most heater manufactures no longer have a temp guage on the dial because there have been too many returns. Additionally, as a heater ages, corrosion builds up in the contacts causing added resistance. This in turn causes the output to vary from the original setting. Also, as the heating element vaporises (black or metalic color on the glass) the output will also vary. Get another thermometer as a second opinion, and then forget that there was ever a temp setting on your heater. If it is not warm enough, just turn it up.

By the way, my tanks often run in the ninties. It isn't a problem as long as you keep air stones running. The major problem with high temp is O2 saturation being lower. Metabolism is higher in the fish (good for grow out) and in parasites (shorter life span).
Click to expand...

yea, I keep my tanks at 84, and have no problems. I have a stealth visitherm heater and a Coralife digital thermometer. They are both great.
 
so do you guys recommend another heater in the tank?

I am getting a digital thermo this weekend

how about a titanium rod? would this be okay to leave in the tank instead of the sump?

Thanks

Sean
 
LiuHsi;579986; said:
so do you guys recommend another heater in the tank?

I am getting a digital thermo this weekend

how about a titanium rod? would this be okay to leave in the tank instead of the sump?

Thanks

Sean
Click to expand...


It's better to have have it in the sump. Then you don't have to worry about fish getting stuck in it like my fish do.
 
I got a new ebo 250 w heater, and i lefted in the water for over night.

The setting on the heater is 82, but my life guard digital thermo is saying water temp is =84 f, and so was my traditional floating thermo.

While the heater is still plug in power, i pull the button on the top of the heater and reset the temp to match 84f and then pushed the buttom back down. Now I set the temp setting back to 82 f, the heater is not on.

Am I doing this right? I just read the menu, it says I need to unplug the power from main? will it matter if the heater was plug in or not?
 
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