Ok thanks, now I can go tell my brother 'I told your so!' ;p
Don't you just
love being right?
guess he may find out some day, but not today!
do a search on in the invertibrate section, there are a few members who keep Cray in communitys, not all Cray are killers. remember though only one Cray is said to be truly tropical. though the mexicam dwarf Cray is said to be a really good community critter, and will keep quite well in tropical tanks.
i dont keep bettas, but thought they were better in a small tank. Cray will need a 10ukg min.