That can transpire. I purcahsed four small to medium and two x-large. I can tell you in my refugium where there were so many aiptasia it was pathetic. I am seeing less and less. Late at night I found a nudibranch on the side just chomping on the aiptasia.
You didn't have anytype of fish that would eat the nudibranches as I have been told most wrasses will kill them .
got the peppermint shrimp now i don't see aiptasia much, did look in my fug it was no aiptasia, however i am seeing peppermint shrimp eating my torch the head i had to put him in check