My Oscars don't feel well, they won't eat and this morning I found this stuff on them that looks like spider webs. Does anyone know what this is? And what I need to get to fix t?

The Jack Dempsies don't have it, just the Oscars.

Please help.

The Ninth Scribe

That looks like injuries to me. Look again closely and you might be able to see the white marks are where its skin has been damaged. The most likely cause of this is fighting, probably from your JD's. A aggressive fish will bash another fish in the side and fish mouth are quite tough. Try to watch your fish and see if there is any aggression. You need to stop this ASAP or your oscar will die. Find out which fish is the aggressor and remove him from the tank to either another tank or take it to a shop

As long as your water is good injuries to fish will heal quite quickly. However seeing as your fish has quite a lot of injuries i would add some treatment to help things along. I would go for something that will treat skin sores

Can you try and describe spiderweb A little more in detail. I'm just wondering is some kind of skin parasites but I'm really not sure. Have you tested the water?