Re: Windsucking/Crib-biting - can it be learnt by other horses?
There's a lady who used to be on here, haven't heard from her recently, I think her name was harriety, not sure, but she had a horse with ulcers, had a lot of problems......if you can find her on here somewhere she may be able to help.
Other than that, I think NAF do a supplement to help with ulcers, if you suspect he has them, it may be a good idea just to feed him as if he actually does.
Or something like Protexin gut balancer may help, it's got pro and pre biotics to ease acid in the stomach, and is pretty good.
Hope you can sort him out, it sounds as though he's found a good home with you :o)