have Nuvo 30 aio that now has an external overflow to sump. Peppermint shrimp got most of it in display section. However I have a media basket where that is used as a Refugium in back section of display tank before it goes through other chambers to the external overflow. Aptasia is in the Chaeto and a bunch in the back chambers. I will start with fresh Chateo. Should I try putting the peppermint shrimp in the back chambers with enough overflowing water so that they can get to all chambers. Also no apstasia has grown in the sump yet knock on wood lol.