I don't really want to mix them, Rosy, I'm just saying it can be done without detriment to the plants. It's the "Chem nutes kill microbes," that I have an argument with -- they are basically identical to organic nutes. I figure if the plant can't tell the difference than neither can the microbes. I will continue to put microbes in the FFoF soil and use chemical nutrients. I believe that microbial action is just as important when using Chem nutes as it is using organics. JMO