noteating

I have two oscars ones my original Oscar and the one that isn’t eating i rescued about a month ago. He refuses to eat anything i have tried tetra jumbomin floating sticks which is what the previous owner gave i have tried hikari cichlid gold floating and sinking i have tried blood worms i have...

My Albino Oscar stopped eating a couple days ago and is now losing scales. I need help identifying the issue so I can save him. He’s been sitting in the bottom with semi labored breathing. I did a large water change (~75%) two days ago. I typically do a 50-60% weekly. I had just checked the...