If I can just put my two cents in. I'm kinda late with this post. Regarding flushing, my great great-grandfather, my great-grandfather, and my grandfather grew tobacco as one of their cash crops. I asked my grandfather if they ever "flushed" their plants. He didn't know what I was talking about, so I explained it to him. His response was "why would you do that? You water them the entire time." I explained to him that it made the tobacco taste better because it flushed out all the nasty nutrients, so the tobacco tastes and burns better. He looked at me like I was retarded. He told me that he has never known anyone to do that. I understand that tobacco and cannabis are two different things, but I assume they are similar enough that if tobacco doesn't need to be flushed, then neither does cannabis.
It's cannabis, not crawfish. The only "flush" I do is when I uproot an entire plant that is going to take a while to clip. I set it in a bucket with some air stones and a tiny bit of Microbe Brew. It's a "flush" by default, not as a rule. Besides, I flushed a few of my plants before, after a mix up with fertilizers, and I was horrified at what I saw the next day. The plants that were flushed were obviously stressed and their growth was slowed compared to the ones that weren't flushed. Leaves began to yellow and they curled up.
in my ZOB. 
