Does Aiptasia affect fishes?

[Seek828]

Hi all,

I'm having a lot of trouble fighting Aiptasia ever since I set up my 90G.
I thought I finally got rid of them until I found a huge one coming out of the base of one of my live rocks a bit earlier tonight.
It is the biggest I have seen in my tank. It is almost as wide at an $1 coin (~1inch wide and slightly less than 2 inch long from base to tip)

I have read a lot about how Aiptasia affects reef tanks but most people tend to ignore FO/FOWLR setup and the fishes.

So does fish get affected by Aiptasia?
For example, does it stings fishes?
I'm guessing it will also eat really little fishes if it gets bigger and bigger?'

Thanks