I've got a question. Maybe I'm confused but did I read that some people continue dosing CO2 while using metricide? I assume that is overkill and not necessary but I wanted to be sure. I'm thinking about tossing my sugar/yeast combo and just buying metricide. Do I understand correctly that 1 gallon of this stuff could last as long as a whole year with a 55gallon tank? I'd love to hear from someone who uses Metricide with a 55g and how much of the Metricide 14 formula should be used daily and how/where to dose it. Into the filter intake? into the ground? Anywhere in the water? Sorry for all the questions.