I remember the name but I’ve seen so many of your grows they run together at times. I know where to look for reference and do a search.
I only mentioned the brown as I wasn’t sure if the lighting was responsible. I also figured if it was an issue you’d have a reason for it. Which you do, your still looking into it.
good point, I never saw this "browning" in clear cups on my kratky training, but again, gotta account for all possible variables that could cause that, could be "bad" bacteria causing that, my nutrient Solution is pretty clear, nothing dark or staining it. I did use kelp at the start for a few gallons, but that was so many gallons ago/low dosage, I don't think it's that.
I do think that browning is from a "negative" affect, but plants look mostly happy for now so carrying on just trying to keep sterile and scrubbed down, careful with my hypo acid dosage.
Love the little money saving tips. Chemistry was cool but an asshat teacher turned me off. Never thought it would come in so handy in retirement. I imagine a lot of good chefs are too.
I've fell more in love with chemistry since growing, that's basically what it is.
Biological chemical reactions, the plant is a biological synthesizing reactor.
I think I've started to also notice or observe that the browning roots, if they are not happy, they start to 'harden' off"
I might of stopped or killed plenty of roots from trying to balance it out 4mins off to 14 minutes off, causing dry zones for instance.
A lot to consider and think about.