You Zoo experts, chime in here.....


Here is a pic of a rock covered in some cool yellow and orange zoos.

Problem is, these ugly plain while ones are coming in.
The seem larger, maybe even Paly's.


Is my only recourse to try and pic the bad from the good.
I had two polyps grow on another rock and I just pulled them off because it was easy because they had much larger, longer stalks......


Advice?