Thabk you. I did water change today also.With that stocking your temps should be no higher than 80. Your fish are suffering from oxygen deficient water...basically slowly suffocating. To make matters worse, the metabolism of fish is sped up at warmer temps, so less oxygen in high temps is deadly. If you don't drop your temps you'll lose your fish
Yesterday, and the day before. Added pimafix also.
Im also planning on changing my media and all pads. What is the best way to do it.
As far as I know Humphead FH is very strong fish hopefully he will make it

