How long has this problem been going on? About 2 weeks
What STRAIN are you growing? Various bagseed, most affected plants are believed to be GrapefruitXBurmese, but the problem is not restricted to them
What was the establishing technique? Seed
What is the age of your plants? 51 days from seed
How long have they been in the soil mixture they are in now? About 37 days
How Tall are the plants? Between 2.5 and 3 feet
What PHASE (seedling, vegetative or flower) are the plants in? 1 st week of flower
What Technique are you using? LST, fimmed several of them once several weeks ago
What size pots are you using? 2 gal, one plant per pot
What substrate/medium are you using? What brand of soil
mixture are you using? 2/3 FOx Farm Happy Frog, 1/3 Ocean Forest
What Nutrient's are you using? GH Biothrive for veg until 1.5 weeks ago, currently GH Biothrive for flower.
How much of each nutrient are you using with how much water? 4 tsp per Gallon, during veg it was slightly lower, we only fed for the last 2 weeks of veg
How often are you feeding? Every 2nd or 3rd watering
If flowering, when did you switch over to using Bloom nutrients? During the first several days of flowering
What order are you mixing your nutrients? Umm, seperately... we haven't mixed veg nutes for a few weeks
What is the TDS/EC/PPM of your nutrients used? ? It's my first grow
What is the pH of the "RUN-OFF"? ? I can check during next water
What method of pH test was administered? Using Strips? pH pen? None, though strips are at hand
How often are you watering? Every 3 days or so right now
When was your last feeding and how often are you feeding? About an hour after the pics were taken yesterday, every 2nd or 3rd watering
What size bulb are you using? 600w HPS
What is the distance to the canopy? About 12''-14''
What is your RH Factor? (Relative Humidity) ?
What is the canopy temperature? ?
What is the Day/Night Temp? About 76-82 with lights on, about 65-67 with lights off
What is the current Air Flow? A fan blowing out the door
Tell us about your ventilation, intake exhaust and when its running and not running ? The fan blows out the door for 12 hours, and not at all with lights off
Is the fan blowing directly at plants? One is, yes. Though more so at the light
Is the grow substrate constantly wet or moist? No, we water when the first 2 inches feel dry
Is your water HARD or SOFT? City water...
What water are you using? Tap
Are you using water from a water softener? No
Has plant been recently pruned, cloned or pinched? LST last night and fimming once a few weeks ago
Have any pest chemicals been used? If so what and when? Neem oil every 2 weeks
Are plant's infected with pest's? Not visibly
Ok, basically we've been noticing these little rust colored spots on some of our leaves. In some cases it goes through the leaf, but it's never in any real pattern. We thought that maybe the plants were transpiring due to the lack of airflow with lights off and burning once the light turned on, but we're really grasping at straws. Hopefully the pics can tell you better than I can.
Thanks everyone for looking, it was hard to really show it under the hps, but in combination with this, one of the more afflicted plants has a claw leaf problem. Like several of them have folded in upon themselves around the main vein in the finger leaves if that makes sense. Both problems showed up around the same time.