That last pic i posted showed one lesf to the right with some sag to it. Maybe its paranoya. Their my babys so i just want them healthy. As for the tips their still yellow no better no worse. But thats it their yellow not crunchy or anything just yellow
I'm a newbie farmer, but I've been totally in research pretty much everyday as I see little differences in my plants. From what I understand is that is definitely nutrient burn, but a very mild case. Since you flushed you probably stopped it quick enough to save your leaves. I had 1 grow a few yrs ago that did the same thing, but I trusted my friend as it was my first run and he ended up taking it to the point of death. thankfully the nugs were pretty well developed.
http://www.growweedeasy.com/marijuana-symptoms-pictures
that link helped me a lot. I had signs of over nutrient in a hydro setup today. leaves were curling and the plants looked overwatered which is pretty weird in hydro corn with rockwool.. suspended out of water! So yea, I got me a PPM meter.. PLEASE BUY ONE OF THESE IF YOU'RE DOING HYDRO!! ppm was 1760... pumped out about 5 gallons from my res and added all water back... dropped to 1240.. 10-15 minutes later they were ALL reaching for the sky! So much joy had from being their caregiver. OUR BABIES! that we in turn eat and smoke which is weird but... SO RIGHT!
Cali Medical
Purple Voodoo 3wks 3 days x4 - 2 weeks 3 days x4
Hydro Top Feed w/flood table, hydro corn, corn xl, flora 3 part, sm-90