I'm kinda' Curious, because me and my friend were having a Discussion, and We Were talking about whether or not it was good to use Soap or HandSanitizer.... I say that The Soap leaves a small thin Residue that can alter the Chemistry of a Nano Tank, but will most likely not have Any effect on the size of a 30+.... So I'm wondering what your methods are... and possible Idea's and thoughts upon this...