just to give a quick update, almost 3 weeks (on tuesday).
All seems to recover, i hightly suspect the high flow in my tank or my angel... but leaning toward heavy flow.
My wellso have more problem since algae have grown on the skeletal part, i tried to removed it without stressing it to much. even my tail spot blenny started hosting the wellso and heating the algae, but i had to scare him away because wellso started to shrink abd puking zoox or poop, can't tell the difference.
lost another acan head, due to algae growth... sight! but it will recover.