I am gonna make a guess he won't go for the pellets. He may not be able to catch the minnows, so might try one dead. The worms will wiggle until they finally drown. Might help him find it if it's wiggling. Might also put a green leaf of one of your lettuces to float on the top. A water hyacinth is normally relished more. Just thinking, if it's an adult, it may be more into the plant eating stage.

Dry docking like you were told is simply keeping him for a short time out of the water. It's used a lot for injuries and shell rot, ect.., Most folks just normally do it at night. They treat them and leave them in a warm, dark, and quiet location inside something as simple as a plastic container. Doesn't have to be very large. Think of it like his bed. We want him to stay calm, quiet and recuperate. Tight lids are a good idea, in case he gets tipped over or climbs out. For slow animals water turtles sure can move when they desire. Some folks leave the container empty, some use paper towels, a few even use towels. I worry about towels and claws getting caught in them myself.

The dangling piece of skin may need to be cut off. Much rather have it cut, then him catch it and tear more of his face trying to get it off.

Okay, trying to post pics...it's been a while since I did this.

Is romaine lettuce okay?
What would I cut off the stray skin with? I have really sharp nail scissors I could disinfect.

also, should I wash with the betadine again? I was worried since it so close to his eye...or the eye he used to have I should say.

I am gonna make a guess he won't go for the pellets. He may not be able to catch the minnows, so might try one dead. The worms will wiggle until they finally drown. Might help him find it if it's wiggling. Might also put a green leaf of one of your lettuces to float on the top. A water hyacinth is normally relished more. Just thinking, if it's an adult, it may be more into the plant eating stage.

Dry docking like you were told is simply keeping him for a short time out of the water. It's used a lot for injuries and shell rot, ect.., Most folks just normally do it at night. They treat them and leave them in a warm, dark, and quiet location inside something as simple as a plastic container. Doesn't have to be very large. Think of it like his bed. We want him to stay calm, quiet and recuperate. Tight lids are a good idea, in case he gets tipped over or climbs out. For slow animals water turtles sure can move when they desire. Some folks leave the container empty, some use paper towels, a few even use towels. I worry about towels and claws getting caught in them myself.

The dangling piece of skin may need to be cut off. Much rather have it cut, then him catch it and tear more of his face trying to get it off.

Just thinking as I am sitting here looking at the pictures, that it may even be better for him if he doesn't eat for a few days. Since he was found upside down on a road we are assuming he and a vehicle of some sort had a unpleasant meeting. We know he had major trauma and it was to the head. He may be showing no other damage, but he may have some internal problems. A few days without food and a lot of quiet rest could be the best for him.

Romaine would work. It's more just to see if he will eat and it seems romaine is often the preferred food by many turtles as far as greens go (atleast around here thats true). Worry about nutrition more once he is eating (once more just my opinion)

If it were me, yep I would disinfect the scissors and snip it. We don't need him doing further damage.

Does it ever stop bleeding/draining?