Can anyone tell me if a Koran angel will eat polyps. I had yellow and brown and red and green polyps growna all over the tank and over the last 4 months I have noticed that they are shrinking in size and not opening up ect ect. the only fish i have in the tank is a koran angel. 2 percula clows, and a bi color psuedo what do you think could be causing issues with my polyps. my mushroom's are doing well