Twotank: After shortly researching what you suggested I really believe you are right. I will do more research when I have time to confirm. Type of Argulus.

They are some sort of ciliate or flagella organism I believe? Kite shaped armor plating that has a brown color to it. They don’t appear to be moving according to my naked eye.

Here’s a better picture they look brown coral clustered area around the barb. Hasn’t appeared to spread. He had this when he was shipped to me from out of state. Has had them for roughly 8 months now. He had some sort of bacterial disease that tattered his fins and also had holes in his top fin and ...