Killing Acro red bugs?

[Mrfish55]

I am only doing the repeated treatments as a precaution I really do not want to have to treat the display "prevention is the best cure" I am hoping the Praziquantel makes it that much more effective. The corals look very good and I noticed there are small sand stars still alive, I can no longer see any red bugs on the corals so I will watch carefully for the next few days.