I think I know this answer, but will post the question.
In one of my overflows, I have three really large Aiptasias growing. They are very fat and happy. I noticed them the other day, when I looked up in to the overflow from underneath the tank. Was curious to what I'd see.
They are attached to the Durso pipes.
My peppermint shrimp plowed through all that I had but obviously I have none in the overflows. Plus, I think the Aips are too big at this point that the shrimp wouldn't touch them.
I'm a little concerned if one of my fish jump in, they will get stung, if not killed.
I thought about boiling them out, but between the pipes and the tight confined space, it's hard to get to.
any ideas?