Sour Diesel (Part 1 of 2)

Background: This is a small grow in a 20" x 36"x 63" tent. Growing 2 sour diesel from seed in coco/perlite medium using General Hydroponic nutrients and primarily following feeding schedule as listed here http://gh.growgh.com/docs/Feedcharts/GH_FloraSeries-DTW_03216am.pdf . I'll be substituting "h3ad formula," i.e. 6 ml GH FloraMicro : 9 ml GH FloraBloom per gallon, for the first 3 rows in the pdf and also be skipping Diamond Nectar, FloraBlend, and FloraNectar. See pic above for nutrient list. Note: Second time attempting to grow this strain. Bud rot destroyed majority of previous grow so this is a redemption grow, hopefully. Lesson learned from previous failure - two circulation fans do not counter high humidity especially for the big buds over 3" wide. On chop day, after vegging for 3 months and flowering for 100 days, the insides of the buds closest to the stems were full of white cotton candy. Couldn't spot it from the outside at all. So lesson learned, and this time end of flower will coincide with low-humidity winter as opposed to the summer. Week 1 - Nutrient regimen: 6 ml GH FloraMicro + 9 ml GH FloraBloom per gallon. Used at 1/3 strength diluted with dechlorinated water. Solution ph'd to 5.8. 9/5/2019 (V1) - Sprouted yesterday and moved under 273 watts of vero 29 LED today, dimmed to lowest setting. Used rapid rooters for germination but would have preferred peat pellets since they stay can stay upright without support. 9/10/2019 (V6) - Fungus gnat larvae infestation! Transplanted to solo cups on 9/6 (V2) using ready mix bag of coco and perlite. Using 1/3 strength "h3ad formula" for first week and fed every other day. Growth appears stunted compared to previous grows and stems needed additional support to stay upright with circulation fan on. Feeding until runoff showed major infestation (see video #1). Can only guess coco mix bag was contaminated, since no adult gnats are visible in tent and yellow sticky card is empty. This has got to be my record for early fuckups! Attempting to treat with neem extract mix (dosed used 5 ml neem oil extract : 500 ml water) and a layer of diatomaceous earth on top (see V6 pic). Hopefully this treatment is better than not doing anything and letting those squirmy baby bastards take over. For a plant this young and without adequate root support this is a gamble. Also bumped up light a bit to 13000 lux as read on Light Meter v3.1 app by Trajkovski Labs using Samsung S6.