Well I got a small school of small green chromis yesterday and this am my bubble tip was all closed up and now looks very happy. Also 3 short on the green chromis....
Is it possible one died and the rest are hiding? I recently added 5 new chromis. Lost 2 the first night, the remaining 3 have made it 2 weeks now. Seems once they get past acclimation, they're good to go.
yeah, looks like and RBTA to me! I haven't heard of them eating fish either! Did you check your sump? My chromis somehow get sucked down the drain all of the time.