My only addition to all this is that I learned, via my vet, how to sex bunnies on my own. Bunnicula was originally named Nick when I picked "him" up from the shelter. The ad in the paper said, "mixed male mini"--she turned out to be really mixed. All of ours are rescues and housed separately so we haven't had any additions. We wish you luck and are sending our thoughts and prayers. Remember, neutered bunnies have no progeny.