Does Aiptasia affect fishes?

I hunt them down by night with a flashlight and magniying glass so the ones I am finding are so small they kill easy. Joey's joice. If you keep finding more then you have one or more some where in the rock, I had to break up a rock once this rock was known to have this pest on it. Once the rock was broken up ( in 3 larg pieces) I found a bunch more now that they could get out in the open. Every crack an atapsia seemed to start growing. still getting rid of them got 2 last night.

Bill