I hope the overnight stay will solve his issues. If there is a way to treat him, he still might have a good life ahead of him

My snapper couldn't swim when I got him. He was sick & no vet could help.. but I kept giving him good foods & lots of love & look at him now! Hes now a 25+ monster & as sweet as can be. I am very glad your vet was willing to take in a heggie. My old vet didn't even want to take in my bleeding rat! She just wanted me to take it home & let it die on its own!!!!