Piece of dark ADF frog skin found in tank. Is this normal?

[Random-storykeeper]

I was doing my regular weekly water change earlier today when I noticed an unusual shed(?) clinging to the inside front of the tank. When I pulled it up, it appeared to have the same sort of pattern as one of my frogs, and I recognized some webbing from a foot. I am fairly certain this is a piece of skin from one of my ADFs.

When I checked the aquarium, all three of my frogs were present and appeared to be fine - I didn't notice any behaviour out of the ordinary. One of them was a bit lighter in colour maybe but still had its spots. I have no idea when this happened as I only found it while doing a water change. I attached some photos of it - I was pretty grossed out by it and then threw it in the garbage, covered with some paper towels.

I know ADFs shed regularly, and I've found several sheds that were complete. However, they are always a light colour, and I've never seen an instance where they've been the same colour as the frog skin before. Should I be worried? I've had these frogs since 2021.

 

[Mudminnow]

...I've found several sheds that were complete.

That seems odd to me. I've kept ADFs too and have never found a complete shed. In fact, I've watched my frogs eat their own skin on several occasions, so there's often nothing to be found at all.

If you have a frog that's sluffing its skin without eating it, this might explain your finding. Perhaps you've simply found a big glob of skin that's been smooshed together.

Should I be worried?

I've never heard of this. But, if your frogs seem otherwise healthy, I wouldn't worry too much.