Hi,
Copperband worked best for me. The Peppermints I had would not touch them, Joe's Juice was useless, and never tried the kalk paste.
Your best bet is to get them now before they get out of control, as it won't take long for them to multiply.
I had them in my overflow and sump like there was no tomorrow, but while running Zeovit for the past year and half they all disappeared
