I have a 20g he could go in .. he'd be king of the tank. Willing to ship? I can pay for the envelope if need be.
tee hee hee. Sorry man, couldn't resist.
Good luck, hope you find him a home. I had a similar dilemma last year letting go of some rabbitfish, but they went to a really good home (way bigger than what they were in) so sometimes these things work out.