Originally Posted by
Iminit
Looks like a cross contamination. I used rid-ick plus and salt to fight this. Took around 14 days. It’s a bacteria so lower your temp to 82. Dose daily and change 50% water daily before dosing. Next 50gal is to small for that many discus. Unless your changing water daily. Can’t see your gravel but I’d think the white stones will collect waste and debris and turn your water bad faster. Can’t tell if the blue diamond is just colored gold be it’s beak or if that’s hole in the head. The other one is just scratched. Probably from dashing around the tank. The salt will cure that. Start with 5tbs per 10gal. So again rid ich plus and salt and daily water changes. Also wat to many ottos in that tank. 4 is all you need. That many aren’t going to find enough to eat in a 50g. So they may start eating the slime coat of the discus.