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Discussion Starter · #1 ·
Hi! Recently I've noticed a strange whitish-clear slime clinging to the heater in my fish's 2 gallon tank. It's only on the rubber parts. It feels, well, slimy and gooey, and when I wipe it off it looks yellowish. I've also noticed that my fish likes to relax and curl around the heater, or sometimes even tackle it! Could this maybe be his slime coat rubbing off, or is it something else? I'm not sure what it is...has anyone else ever experienced something similar?

It's a Tetra Submersible Aquarium Heater from Petco ( in case anyone wants a visual.

Any ideas?
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