This senior reefer once told me.
If u want to keep an AT, start with keeping YT, PT, BT first.
If these 3 survives, keep powder blue/black/brown tangs.
If the powder tang survives, then maybe can try AT.
ha. . i feel better now. . but might have to sell the almost-palm-size pink yuma and this red cyarina if i have last min plans to upgrade my equipments. . .