I have new 10 gallon tank with a Betta fish in it that I saved from a friend. The Betta is doing great but he seems a little lonely. I have always wanted a dwarf crayfish but never had the room in my 38 gallon. Would it be ok to keep a dwarf crayfish with a Betta? I have read that it is a good idea and a bad idea on many websites. Any help would be great!