This is my first grow. The plants are now 6 weeks old. I've had troubles with fungus gnats (now dead) and with yellowing lower leaves, and some brown spots on leaves. Since I have 3 different plants, they are showing different symptoms. I have a Jack Herrer, a White Widow, and a Pineapple Express. First here's my official sheet:
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What is your experience level? (first timer, novice, experienced...) First timer

Your Equipment:
.1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's) 4 ft. 4 lamp T5 tube flourescents 95 watt T5 VHO 6500K
.2) Distance from tops? one foot
.3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...) Sun BLaze 44 light fixture built in reflectors
.4) Is there a consistent fresh air supply? door to room is open, hvac vent in room
.5) Do you have an exhaust fan and a circulation fan? have circulation fan
.6) What are the bulb wattages, kelvin ratings, and schedule? 6500k, 95 watt, on 24 hours.

Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. (vermiculite, perlite...) Black Cow brand humus and manure with perlite added (2 parts soil and 1 part perlite)
.8) Size of container. 1 gal.
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings? coco to germinate

Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting? tap water 7.0 ph, adusted to 6.5
11) Method of checking water ph. (ph pen, test strips, aquarium test kit...) aquarium test kit
12) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...) PH down
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule. Foxfarms Grow Big and TigerBloom, can't seem to find the correct dosage. 1 tsp not enuf? 2 tsp too much?
14) How often are you watering between feedings, and how much per watering? I water these guys every 6 days since they seem to stay damp. I have 4 plants and they take about 1/2 gallon for all.
15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...) just tried molasses, jury not in on that yet
16) Are your ph levels stable, or do they fluctuate?stable
17) What is your ingoing water's ph? ...your runoff ph? ingoing = 6.5, runoff - 6.5
18) Do you foliar feed? If so, with what, how often, and at what time do you spray? no

Your growroom:
19) Indoors or outdoors? Indoors
20) What size of closet, room or hut? Room size 10 x 10
21) What are the temps and humidity levels while lights are on? ...With lights off? humidity 40%, temps day 78 deg., lights not off yet
22) Have you seen signs of insects in the growroom? gnats were a problem but they have been nuked to oblivion by several methods. (muh haa haaa!!!)

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?) Pineapple Express, White Widow, White Domina, Jack Herer White Domina is a 3 leaf mutation so she's not mentioned further here.
24) From seeds or clones? seed
25) Is this an autoflower strain? No.
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I know that WW is more sensitive than some plants but is she turning so light from not enuf food or what? I fed them heavy last week and you can see they're all a tiny bit nute burned on the tips. I'm cutting down, but can't quite get the amounts straight. All three show yellow leaves on the bottom some worse than others as you can see. Some have brown spots (calcium deficiency?) White Widow is turning yellow/white on bottom leaves (magnesium deficiency?)
okay, pictures:
Attachment 292486Attachment 292487Attachment 292488

Please let me know what your ideas are for fixing one or more of these plants. I think they may need differing treatments. How often do you feed and water 6 wk. plants in one gal. containers? (by the way I'm repotting them all this weekend to 3 gal.)
giggletwig Reviewed by giggletwig on . My plants are confusing me with varying symptoms - help! This is my first grow. The plants are now 6 weeks old. I've had troubles with fungus gnats (now dead) and with yellowing lower leaves, and some brown spots on leaves. Since I have 3 different plants, they are showing different symptoms. I have a Jack Herrer, a White Widow, and a Pineapple Express. First here's my official sheet: ------------------------------------------------------------------------------------------------------------ What is your experience level? (first timer, Rating: 5