Yellow/Bright Green tips.

Indoor AutoFem Grow 3 plants
Light: 400w mh with 400w hps bulb for flower. 24" from top of plants.
Area: 3x3
Temp: 24 c
Hum: 40%
Soil: 11 ltr Peat, 11 ltr coir, 11 ltr mushroom compost, 5l perlite, 5l vermiculite, 1/2 cup worm castings, 1/2 cup Natura tomato and veg fert 5-7-7
Water: Well water aerated for a day ph'd to 6.5-6.8, given 1 liter when soil dry to first knuckle.

https://www.rollitup.org/t/twisted-plant.979797/#post-14588852

G13 Labs Pineapple Express Auto Fem, 3 weeks old today. The above link is to 2 weeks ago when I was running into problems with the MedGom, suspect was a hot soil mix. While that plant is still growing it is still recovering a bit.
I brought up the link because my first suspect was that all of a sudden after 3 weeks the PE was getting a slight N burn but now I'm unsure as to whether or not it's a slight deficiency and may be time to start feeding it. The Bubble Kush required a good feeding 2 days ago as it was really showing signs of needing a good feed. Completely missed having tunnel vision doing LST. Let me know what you guys think. It's def in the infancy stage of a problem but want to get a head of it. Cheers.

Your girl does not look like it lacks food...she's plenty green and healthy looking. Unfortunately you'll almost have to let those few leaves with the yellowing grow out some just to be sure you're not going down the wrong rabbit hole. Can you elaborate on your feed program? Any idea on your feed pH, soil pH, etc? My gut says you're experiencing a lock out vs. not having what you need in the soil.

Why are you keeping your humidity so low in veg?

Google vpd chart and live by it if you want less problems .


To me im guessing you have a over abundance of sonething in your soil, locking out another element

Plants can live alot longer with a n deficiency, rather than an excess of anything .

If you ever second guess., your better off sticking with just water until new growth appears . Plants dont mind being nitrogen deficient . I keep mine right on the edge of too little.

CannaCountry said:

Your girl does not look like it lacks food...she's plenty green and healthy looking. Unfortunately you'll almost have to let those few leaves with the yellowing grow out some just to be sure you're not going down the wrong rabbit hole. Can you elaborate on your feed program? Any idea on your feed pH, soil pH, etc? My gut says you're experiencing a lock out vs. not having what you need in the soil.

Click to expand...

I have not fed the plants yet as the soil probably had to much to begin with. The feed is a dry granular type product but when mixed with water at a ratio of 2 tbsp to 1 liter the ph is around 7.5-8. My last round of watering I lowered the PH of my water a little more to around 6-6.5 and believe this may be my issue as since that watering all my plants are starting to show some sort of defficiency. I had a bad run of soil PH meters so I don't know exact soil PH but tested runoff on last watering at 5.5.

As for humidity, it is what it is. Had a wet towl in there during veg but now that they are flowering I'm happy with 40%. Def could be better and will prob grab a humidifier next round.

Thanks for the info guys, kind of happy to be running into problems, if it went perfect the first time around I wouldn't learn a thing. Cheers.