Another yellow leaf question...pics

[xbport]

Yes...another yellow leaf issue. This one is getting yellow on the top,Jack 47. No other plants in the veg room has this problem. Soil Foxfarm, 5 gal bucket, Nutrients 1/2 str 1x/wk, 400 MH, appro 32". So is it lockup, N, S, Z or any other ideas. Help, my plants sick....

[WashougalWonder]

Fill out the trouble form and let us have some more information...


Flush regardless, you do have a lockout and I don't remember without looking it up which nutrient. But, flushing is the treatment regardless, maybe even pot up to next size, but lets see what the trouble shooting form has to say. Thx

[Dutch Pimp]

maybe, this can help?...:)...Text (http://cannabis.com/growing/nutrient-plant_abuse_chart_and_photos_pictures.html)

[xbport]

What is your experience level? first timer

Your Equipment:
.1) Type and wattage of lights. 400 MH Veg / 600 HPS Flower
.2) Distance from tops? about 6-8 inches
.3) Reflector type? air cooled reflector
.4) Is there a consistent fresh air supply? Yes
.5) Do you have an exhaust fan and a circulation fan? Yes
.6) What are the bulb wattages, kelvin ratings, and schedule? 400 Veg 18/6 600 Flower 12/12

Your medium:
.7) Specific brand and type of soil: FoxFarm Ocena Forest
.8) Size of container. 5 gallon
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings? Yes

Your nutrients and water:
10) Source of water? Tap, sits for 4 days Ph 6.5
11) Method of checking water ph. test strips
12) Method of adjusting water ph. N/A
13) Specific brand and N-P-K ratio for each bottle. Follow the Foxfarm chart. Have recents swithed to 1/4 strength 2x/wk. (3weeks ago) Was doing 1/2 strength 1x/
14) How often are you watering between feedings, and how much per watering? About twice, water only when they need it. About 1/2 gallon to 5 gallon bucket
15) Any additives or tea's? No
16) Are your ph levels stable, or do they fluctuate? Stable
17) What is your ingoing water's ph? Haven't checked
18) Do you foliar feed? no

Your growroom:
19) Indoors or outdoors? Indoor
20) What size of closet, room or hut? 6x12 flower / 5x10 Veg
21) What are the temps and humidity levels while lights are on? 50-55%
22) Have you seen signs of insects in the growroom? Treated thrips once

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?) Both
24) From seeds or clones? Both
25) Is this an autoflower strain? ?

[Rusty Trichome]

I use the FF at 1/2 strength twice a week. You should likely do the same. (you're underfeeding 'em)

Old leaves are old news. Watch the new growth for current plant conditions. The old leaves will never 'heal-up', but new growth should look fine if all is well.