Fighting a yellowing problem. Used RO water since day one along w/ Cal/Mag Plus. Been feeding Farmer's Pride Organic at full strength for a couple weeks but I have not been impressed w/ the results. Switched to Botanicare Pro Bloom Soil w/ Liquid Karma today ... about 3/4 strength ... went with Botanicare because I had it, I haven't been impressed w/ it in the past. Taking care of the electric problem next week so I may get to add a fan ... I removed about a dozen yellow leaves prior to photographing ... ph pegged at 6.6 ... I've never had ph stay so level ... I attribute this to about a quart of 'Quoddy' from 'Coast of Maine' in each 3 gal pot ... Lights on temps have been about 85* / 78* with them off ... Plants w/ the better buds are Blue Mystics, they are also the plants that are suffering from the most yellowing.
Cool:
Week 6 ...
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Aloha, nice looking girls- Yellowing can contribute from to high of a ph 6.6 is in a zone where nute intake and reaction growth can be stunted and is harder to bounce back from in soil then the rest ie hydro aero; however not completly impossible in soil you would need to adjust your ph to 5.5 6.0 max then flush your girls for a few feedings then only go 1/4 to 1/2 strength on your nutes for now until they fully recover from the deficiency. Here's a link you can use to compare and adjust to prevent anymore future problems take it easy Brother. https://www.autoflower.org/f74/self-diagnose-your-plants-basic-deficiencies-list-11.html

