Marine depot sells them but they are like $100!!! My reef club bought one during a group buy so we have one available.
It may seem like it will take forever, but if you use aipastia X or another injectable and do a few every day or two you will eventually get them under control. peppermints might eat small ones so if you kill the big ones they might have a shot at eating them.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.