Flower horn help

[Enthusiasper]

I brought a flower horn completely healthy eating fine everything going good suddenly it seemed as if it had started seeing less it could not see pallets from far only could see when it came close then now it has gone completely blind Coudnt see pallets at all takes bites in empty water
White stringy poop is always hanging from bottom
When all this were happening both eyes were clear still it could not see and bumping into objects etc
Now the eyes too have gotten cloudy fish is lathargic still comes to surface when I turn off filter to put pallets blood parrot sees and eats normal but FH could not see and not even eat pls help I don’t wanna lose this fish plus looks like I saw a spot in the head above nose I hope it’s not hole in the head
Plus not sure if it’s important there was a severum in this tank before which went blind suddenly then starved to death in 6-8 months

 

[HUKIT]

I’d start here.

Treating Hexamita aka Spironucleus

Treating Hexamita aka Spironucleus with Epsom Salt Solution This is a rather safe way to treat any newly imported fish, as a prophylactic, just as one would use a de-wormer. It's not only an extremely cheap way to treat fish, the active ingredients are readily available world-wide, and it's...

www.monsterfishkeepers.com

 

[Deadeye]

What’s you usual water change rate? What’s the feeding schedule? What’s the tank size?
The cloudy eye looks like popeye to me. Generally, that’s best treated with an antibiotic. Maracyn 1 is best for eye issues, but kanaplex also works.