Thermometer Falling

#Crabs

AC Members
Nov 4, 2019
130
10
18
Northern, NJ
Do any of you have the same problem where my thermometer suction cups just keep coming off the glass? I literally put it on then 2 minutes later it is floating again. It just will not stick to the glass. 1582275855087.png
 
I've never had long term success with suction cups for anything in the tank. I use magclips for heaters, etc, once the cups fail.

I've got some cheap digital thermometers I use from time to time on my tanks for a ballpark reading. Other than that, it's all by feel :oops:
 
make sure the glass is clean,

a few mins in boiling water will likely make the suction cups more flexible and therefore more likely to stick to the glass.


Probably cheapest long term to buy a non-contact IR thermometer when they go on sale at Amazon, or Harbor freight or wherever.
 
you can also get them to go over the rim of your aquarium too, and hand from that instead of being suctioned to the glass.
 
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