Albino Iridescent Medical emergency

[Pranay]

My albino iridescent was just introduced to a new aquarium , my Oscar bit one of its eyes and a part of his head off. He almost died , I put him in a separate section in the tank away from the Oscars but he's heavily injured , and just laying on the bottom heavily breathing. Is he going to die ? What can I do to save him ?
Please help.
I've attached pictures.

 

[juniperlea]

Take him out of the tank and put him in a bucket. He knows the oscar is next door.

 

[austinindia555]

The best thing to do in this case, is euthanasia. He’s suffering:/
Put him in a Tupperware, one that’s never gonna be used for fish again. Take some clove oil and drop it in with him. It’s better than him suffering til the end.