They are my favorite too
but my females fight,I had a trio but they fight all the time so i had to sell the other bimac.
So far lately i been having issue with pair or trio like my xhatch trio, two of the very small females fight that cause one to have eye injury.
This morning my moorish idol fight too after a week getting along. So i have to pull the new one out.
Hopefully my pair of regal and multibar never fight.