After a water change I noticed something move on my frogspawn. It looks weird and I haven’t the slightest what it could be. Any ideas? This frogspawn has had some trouble and I’m Wondering if this could have anything to do with it.
It may just be a bivalve, similar to a clam or mollusk. The puffing and going flat could just be it opening and closing it's shell. I'd recommend touching it to see if it is soft or hard. That would help narrow down the possibilities.
If you can pull that frag from the tank, you'll be able to get a closer look. If it isn't moving at that point, I'd try to gently lift it with tweezers.