You don't have to already use the Flora series or other Advanced base nuts. for one to have an effect on a plant or system (if that's what you were saying). You can use GH, Organic or and combination of base nutrients and still benefit from the use of one AdvNut product. I'm sorry I usually agree with you but not on this because I know people who have used piranha and voodoo juice just as a reservoir treatment without using other AdvNut products. It promotes healthy roots and the organisms will breakdown the rotten roots. I agree there are other options and the more information listed the better the response but it wouldn't hurt. Stoner Thought here: Maybe you were talking about the toxicity level in his reservoir; maybe that cannot support life even at the microbial level if the PPM is too high. ANYWAYS I'M HUNGRY!