I'm pretty sure that I know what's going on here, and as I've mentioned in a few other places I THINK this is just normal late flower N deficiency. But I wanted to fill out a trouble shooting form just in case it's something else that I can correct or avoid in the future. This is my first grow, so I just want to be sure. I flushed them each twice a couple of weeks ago, and then resumed feeding as normal after they dried out a bit.

E-indoor or outdoor: indoor
E-soil, soilless, coco, aero, or hydroponic: soil
E-specific medium: MG Organic Potting 75/25 with perlite 1 1/2 gallon pots (kind of small I know)
CSL-Soil type/brand: MG Organic (they've been in it since the beginning, I won't use it again, I promise)
SCL-Anything you have added to the soil: Nutes as below
SCLR-Soil or slab runoff pH: high 6s (as per cheap test kit)
E-Water source: alternating b/t distilled and tap (the tap is very hard), figured the hard tap would provide enough cal/mag
E-Source water pH: high 6s
E-Age of plant: about 5 months total, around week 7 in flower
E-Type of fertilizer: Botanicare Pure Blend Pro Bloom 1-4-5 at full strength (has produced minor nute burn on the tips), also molasses with the last 2 feedings
E-Rate of application: full strength (2 tbls per gallon)
E-Lighting source and distance from plant: 150w HPS about 4" (I know that sounds close, but I've seen no indication of heat damage to the tips)
E-Air temperature (both day and night if you are running a dark period): 75-85 during the day, not sure about night time temps, got up over 100 a couple of weeks ago for a few hours.
E-Air % Relative humidity: 52% at the moment
E-Lighting schedule: 12/12
E-Type of ventilation your room has: twin blade window fan blowing up from underneath, only intake/exhaust is from pre-existing cracks and whatnot.

The untopped plant has gone pretty quickly from verdant green to what you see below (acutally i guess the lower leaves have been yellowing for about 2 weeks). The topped plant has been degrading for a while longer. Minor variations because of human error aside, they've been on the same schedule, though the topped one is about 2 weeks older in total age (same time in flower).
warfrat73 Reviewed by warfrat73 on . Is this N deficiency, or is it something else? I'm pretty sure that I know what's going on here, and as I've mentioned in a few other places I THINK this is just normal late flower N deficiency. But I wanted to fill out a trouble shooting form just in case it's something else that I can correct or avoid in the future. This is my first grow, so I just want to be sure. I flushed them each twice a couple of weeks ago, and then resumed feeding as normal after they dried out a bit. E-indoor or outdoor: indoor E-soil, soilless, coco, aero, Rating: 5