growth on head

Hi, I've had my panda cory for almost a year now he spent most of his life in a 9 gallon, where he wasn't very active, due to some weird urgent disease that wiped out all of my tetras with perfect water parameters and melafix doing nothing, I moved him and the couple other cory cats I had into a...

Hello all, Been around fish for about the last 5 years. My Male betta seems to have some sort of tuma around its gill/head area. Unfortnatley i have been working away for the past 3 months and come back to very nasty sight. I tried my best in order to take a photo of it but bowed glass and a...