ICK!!!

[Diana]

There are several fungi that can show up in an aquarium, but most look about the same: Greyish white hairy stuff, or else a not-quite-clear jelly-like mass (more often seen on driftwood). I would not describe any aquarium fungi as 'Parmesan cheese', which, to me, would look sort of like Ich, but bigger.
Maybe several Ichs so close together on the fish that they look more like one bigger spot?

A fish that is almost dead, but removed from the tank is better than allowing a sick fish to die in the tank. Many diseases and parasites know when the host dies, and abandon it, and go look for another host.
If a fish is that close to dieing, I would remove it and euthanize it with clove oil.

No matter what they are dieing of many fish will lose the ability to swim in a normal orientation. It may be weakness, unable to move fins, or may be failure of internal organs, including swim bladder. That sort of drifting at the end of their life is not an indication that they might have had swim bladder disease.

[Crissyloach]

I lost him shortly after I posted last. I didnt want to kill him in by putting him in the bag. I would rather euthanize him.

It might have been close ick spots. But it was on every fish I lost, and it was on the fish a day before I lost them. It looks kind of fuzzy (is why I thought fungus), and it is hanging off of them- only some patches were on the body.

[Diana]

'Hanging off' does not sound like Ich.

[Crissyloach]

I agree. I do not know how to describe it anymore, now that all of the fish with it are dead.