Emergency! Snail in Trouble HELP!

I would keep an eye out to make sure you can't see his inner body through the crack. If you notice that you can see it, it probably needs to be repaired. As long as you are seeing shell, its likely he will reinforce it himself. You want to try and keep him from being too terribly active and possibly worsening the crack (like climbing decoration and surfing down and possibly banging into something). The temp is great where it is. As long as he is eating well, I would keep his diet the same.
 
I would keep an eye out to make sure you can't see his inner body through the crack. If you notice that you can see it, it probably needs to be repaired. As long as you are seeing shell, its likely he will reinforce it himself. You want to try and keep him from being too terribly active and possibly worsening the crack (like climbing decoration and surfing down and possibly banging into something). The temp is great where it is. As long as he is eating well, I would keep his diet the same.
So is the 3 gallon tank too big for him? I have a goldfish bowl that holds about a gallon of water also. There is no flesh popping out of the crack.
 
The layer of shell that was dangling came off. He was kind of working it off - I don't know how else to describe it. I will get a pic of it. I can tell you it is very thin, like onion skin but obviously shell.
 
My batteries went dead on the camera. But I will hang onto that shell piece to show a photo. The bands on it are going in a different direction so I think he injured himself in 2 different areas.
 
the 3 gallon should be fine, is it filtered? You really want his water quality to stay as ideal as possible.
Yes the Eclipse has a filter but the bio wheel has been dry. I can use the Eclipse cartridges, and I'm thinking that as long as I do daily water changes of 1/2 gallon I should be okay? I have extra hornwort and java moss that I can use also. Thanks for your help - thank you!
 
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