[Stones]

From what I've read, only 1 treatment or dip with interceptor is necessary since red bugs are live bearers and there is no egg stage to worry about.

When the interceptor treatment was first pioneered several years ago, very little was known about red bugs and the multiple treatments were put in place only as a way to deal with the possibility of more red bugs emerging from eggs resistant to mibemycin oxime. Since you are using a new type of medication to treat your QT tank, it probably wouldn't hurt to dose again to be sure that you wiped out all of the red bugs.