I read somewhere that flowers and tigers don't do good with black rays as they are too aggressive for them and stress them out and they stop eating. How much truth to that statement? I have no tanks to hold solo rays so it needs to hold it's own with bd/leos,pearl,henlei and a leo/pearl hybrid. I have no time whatsoever to baby a adult ray and have no desire too as I only like to keep hardy fish and rays. Also read the tail fungus problems with flowers and tiger when their tails are injured or bitten as they are so long.
You are smart not to try. I tried it and failed. My pair of tigers were over 15", and I actually caught the male trying to breed. I ran out of room and starting mixing them, and it all went bad. I ended up losing them both. Twice the leo tried to breed with the tiger, eventually he stressed her out and killed her.