After doing the treatment and realizing such a very tiny piece of dust you put in there, now I am sure you can appreciate why
you don't mess with the tank unless your hands are freshly rinsed off with tap water so there is absolutely no contaminating
soap or lotion or oil on your hands. Dry you hands with a clean white paper towel, no a towel from the laundry as this also
has soap and softener residue. Over time, it gets in the reef from you hands. You probably alreay do this, but, others reading
this may be less careful. Doens't take much to affect the reef, does it?