Anyone ever successfully kill mojanos with kalk? I have a few that had stayed put since last August when I started the tank, but now a few split so i'm going to kill them all now before they become an issue. But I don/t feel like buying an entire container of kalk when I only need a little to kill less than a dozen mojanos. Anyone local to me have a little laying around? I don't mind throwing a few dollars around, just don't wanna spend $10 on a whole container.