sickness idetification

So I just got this hippo tank for 20 bucks from a guy who had it in a 20 gallon tank and was looking closer and spotted these freckles looking things on its face that I swear I can see bone from there since it's white I might be wrong but if posted it on Reddit on Facebook and I've got very...

Clownfish passed this morning, in the few days leading up to the death she was acting normal over the span of a night she started breathing heavy and swimming less. The following night stopped eating and then last night had what looked like a boil and a few red dots on her and became very pale...