2 years ago#1
delfiend
Gold Member
Blogs: 21
Forum: 161
Votes: 22

I don't know if its my thermometer or if its my heater, but the temperature, according to my thermometer, has NOT changed, even when I adjusted the heater from between 5 and 6 to between 7 and 8. Last night I put my old heater from my 10 gallon tank that's supposed to keep the temperature right between 70 and 80, but I don't know how well it works in a 46 gallon tank.
My fish seem fine, but I don't know what's not working! The adjustable 175W heater is used, so I'm not sure if it even works! Thermometer has constantly told me the temp is 65°F! Please help!

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2 years ago#2
johnarthur
Blogs: 107
Forum: 24,686
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An aquarium thermometer is inexpensive and usually much more accurate than the thermostat on an aquarium heater. To see if the heater is working, put it on a high setting then feel it. The heater should start to get warm within a minute.

Assuming the heater works, set it so it just comes on, and monitor the temperature on an accurate thermometer. Make small adjustments in steps until the thermostat is set properly.

Aquarium heaters have been known to get stuck in the on or off mode, so be sure to check the water temperature often.

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2 years ago#3
delfiend
Gold Member
Blogs: 21
Forum: 161
Votes: 22

Well the thermometer is an aquarium one. Its magnetic, with a magnetic on the outside so you can move it around. We also have two other heaters, one that we were GOING to use, but then we left them at a petstore about 45 minutes away. We called and they're holding them for us, but we haven't been back over there. The one weve been using really isn't power enough for our tank.

I'll test out the heater like you said. My dad said he though he saw it glowing last night like its supposed to, but I thought it was just the glass reflecting light from the hallway.

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