Hi had a small problem with aptasia at first I was able to keep them in control with aptasia x but a few began to grow in an area that I could not reach at that point I decided to look online for a site that sold peppermint shrimp in the past most inverts I had purchased to try and eliminate pest did not work. I purchased a peppermint shrimp from an online retailer and received it in excellent condition i acclimated it and put it in my tank and obviously for the first few days it stayed low then it molted that is when good thing happened I believe after it molted it was in need of nourishment and then devoured my aptasia all them!