Top Fin heater Holder
thingiverse
I have a bunch of Top Fin Heaters, but somehow I can never find the suction cup deal that came with them. I use this and a dab of aquarium safe silicon to mount this in my aquariums, hidden behind my Aquarium Corner Hide.I made a version for suction cups that work with this (in the 30 mm version)https://www.aliexpress.com/item/1005004091686687.html
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