Combined with Levamisol dips I would consider adding some or one of a few select wrasses including but not restricted to Yellow Coris, or 6 Line. In most cases they can be quite effective at keeping pests at bay. I would also DIP EVERYTHING that goes into your tank using one of the commercially available dips such as Coral RX or Revive. Neither of these will kill the eggs so very close inspection and removal of the eggs is highly recommended. Good Luck!