My aquarium has been having problems for a while and after about a year of work, I am finally getting things back on track. One of the last problems though is that my overflow is full of aiptasia. I've got a peppermint shrimp that keeps them out of the main tank but obviously it's not good to have a large number of them in the overflow. I can't reach them to do injections as the middle of the overflow has the pipe in it and there's not a lot of room around it. I did drain the overflow twice and left it dry for a day but they came back after that.
Does anyone have advice?
Does anyone have advice?