... new growth can be pretty light in color,.. older leaves look fine,.. if it worsens on the one lightest plant, it might be early Fe or Zn defc.,... those strips are not made for this purpose, and aren't reliable for accuracy, but going by that, the soil is OK, not alkaline enough to start Fe/Zn defc., around 7.0 they can start to lock-out,....The strain is critical neville haze autos and the newer growth is light green and I was wondering if anyone has had this happen to their plants. I just fed them a few days ago with Fox farm grow big 2 tsp per gallon I'm using promix hp and 5 and 7 gallon smart pots. The pH of my soil is somewhere between 5.8 and 6.5. Iv been using pool strips till my ph meter and ppm pen arrive in mail.
... is this the same plant as above? If so, something is off, likely pH and it is a defc. starting, looks more Zn related than fe,.. the best way to fix this is by foliar spray, with a dedicated micronutrient supplement, like Earth Juice Microblast,... also, confirming the in-pot pH is really needed, to see if it's off enough to cause lockout, or she just needs more,.... feeding more heavily may risk burning her, since the concentration of Fe in the food is low vs. a supplement,....My plants are looking funny please help ? Please reply as soon as possible.