sick?

We got a lemon peel angel from our LFS and asked them to hold it and keep for a couple weeks to make sure healthy and happy. When we put him in yesterday after acclimating, he seemed happy, exploring, swimming around. Today, he won’t come out from a cave. Just scared and hiding. Perimeters...

Hello everyone, So I got this lemonpeel angel fish as my second fish. I see some white discoloration on their scale by their belly and bottom of fin. Im not sure if they are sick or thats just them since they also have those white/bluish lining on their faces naturally.