vampire

Hello everyone, today i noticed a bubble like mass on my Vampire SRD flowerhorn, it was at the bace of the pectoral fin and I'm scratching my head to what this truly is. Any suggestions would help, its a medium bubble but its concerning me (5mm thick) I think its something to do with either...

I've noticed my 6inch Armatus's fang is broken and bent inwards. Is this a normal thing that happens or should I be worried?

So I finally bought my dream fish for my 100gal. A armatus payara, its about 3inches and its looks amazing. Just wondering if anyone has any care tips or "do's and don'ts". I did as much research as I can but I'm sure I can get better info from someone who owns or owned one.