I am running a DWC system and am using the General Hydroponics, three-part, Flora Series nutrients. I was getting root rot problems and was controlling it with hydrogen peroxide. I think that the hydrogen peroxide does something bad to the nutrients, and because of this, am now using Dutch Master ZONE, mixing it with the Flora Series nutrients. The roots look O.K. and may be a little dyed by the Flora Series nutrients. My question is... Can Dutch Master ZONE be used with the General Hydroponics, three-part, Flora Series nutrients or are these not to be mixed together? Thanks.