What is your experience level? first timer come novice.Attachment 284625Attachment 284626Attachment 284627Attachment 284628Attachment 284629

Your Equipment:
.1) Type and wattage of lights. 400w HPS
.2) Distance from tops? 6"
.3) Reflector type? 6" cool tube at fixed height. have to lift the plants to adjust height.
.4) Is there a consistent fresh air supply? passive. 4" carbon filter setup RVK. Runs seperate to cooltube.
.5) Do you have an exhaust fan and a circulation fan? Exhaust fan per above with filter. Circulation fan inside room.
.6) What are the bulb wattages, kelvin ratings, and schedule? 400W Growlite.

Your medium:
.7) Specific brand and type of soil Canna Coco Pro Soil.
.8) Size of container.
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings? No, paper towel method.

Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting? Tap water. PH 6.8
11) Method of checking water ph. (ph pen, test strips, aquarium test kit...) PH PEN
12) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...) None as of yet. never had to.
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule. NPK 8-2-6. 3-4ml per litre. every 3-4 days when soil becomes dry about an inch deep. I check with finger.
14) How often are you watering between feedings, and how much per watering? 1 watering. 3/4 litre
15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...) Nope
16) Are your ph levels stable, or do they fluctuate? Seem stable
17) What is your ingoing water's ph? ...your runoff ph? Ingoing 6.8 runnof same.
18) Do you foliar feed? If so, with what, how often, and at what time do you spray? Usually every morning when get up for work half hour after lights been on i spray with mist. Pure water.

Your growroom:
19) Indoors or outdoors? Indoors
20) What size of closet, room or hut? Small see pictures.
21) What are the temps and humidity levels while lights are on? ...With lights off? Max daytime 82F Min nighttime 68F
22) Have you seen signs of insects in the growroom? The odd little fly but nothing to note. I have a insect screen on passive intake.

Your strain:
23) What strain are you growing? GHS BIG BANG FEM AUTO x2, 1X Af Kush and 1 X Grapefruit
24) From seeds or clones? started from seed.
25) Is this an autoflower strain? GHS BB is auto. Grapefruit and AF KUSH arent auto.

After reading a full gardeners bible and checking a pictoral guide to plant problems i assessed it to be nitrogen defficiency. I put a small amount of sulphate of ammonia into feeding jug and fed along with my BIO GROW. Hoping this sorted the problem. Now a few of the leaves are looking a tad burnt SEe pics.

Any advice on how to get rid of the burning and dying yellowing leaves would be good. and drooping on the taller one. Thanks a lot guys
holymoly2012 Reviewed by holymoly2012 on . help if possible please plant problems What is your experience level? first timer come novice.284625284626284627284628284629 Your Equipment: .1) Type and wattage of lights. 400w HPS .2) Distance from tops? 6" .3) Reflector type? 6" cool tube at fixed height. have to lift the plants to adjust height. .4) Is there a consistent fresh air supply? passive. 4" carbon filter setup RVK. Runs seperate to cooltube. .5) Do you have an exhaust fan and a circulation fan? Exhaust fan per above with filter. Circulation fan inside Rating: 5