possible fungal?

The issue: one of my glofish seems to be gasping, lathargic and slightly emaciated. Note: all my fish get fed regularily and I try to make sure all the fish get a decent share (without overfeeding them ofc). but the issue is that its just the one glofish thats acting like this. All of my other...

Yesterday I bought two Platys from Pets at Home, and less than 24 hours later I’ve noticed this tiny, slightly raised bump below the mouth of one of them. I’ve attached a photo that shows it quite clearly. Please can anyone advise me on what this might be? I’ve already rang up Pets at Home and...