Fish pecking at other fish with Ich?
Hi everyone! I'm new on here and have a very strange question regarding two of my molly fish. I got a new female molly at a store yesterday, introduced her to my tank with no problem, and was very happy with the addition. However, after waking up this morning, I noticed that the new (younger and smaller) molly was pecking gently at my older female molly. The older molly has had ich for a while now, and is being treated currently along with the rest of the tank. It looked like the smaller molly was pecking at the ich spots on the older molly, which I have never heard of happening before. The female molly was tolerating it suprisingly well, just sitting and letting it happen (also turning slightly vertical in the process? [I thought that was worth mentioning]) until after a while she snapped and startled the smaller fish to get her off.
Does anyone know what is happening here? I didn't know if the smaller molly could get ich from nibbling the older molly, and I didn't know if this is problematic or not... any advice?
(attached are pictures of the two fish: the dalmation is much smaller and the marble is much larger)