It's been a few days now and he's still feeding well, takes less convincing, still spends most of his time on his back or sides but is managing to get on his front more often. Do keep an eye on here for those that are interested, I'll keep updating as things go on.
He's doing well, spending a bit less time on his back now. Once I've got him back to full strength I think I'll let him go to a new home, IIwould keep him myself but I don't think I could bear to see anything happen to him later down the line, plus I think he'll need a bigger tank. So if anyone wants to adopt him let me know. I can take him to the lfs and get money for him but I'd rather give him away and know that he's going to a good home.