From a fellow grower: past 3 tries from 3 other banks-not ILGM- were all tiny 4" to 14" maximum with almost no yield. I have wasted too much money to continue failing. I have mars hydro 600 ts led lights at 18 hours on, good soil mixed with peat moss for drainage, water sensibly, yet still small plants. I tried coffee grounds as a nutrient additive.
There have always been about 12 plants at a time, first wilted in hot attic and next in main house with natural light, next i bought 2 mars hydro ts 600 lights at about 30" height on 18 hours. Always have been using great value purified water, careful to not give too much or too little. I had 2 ph guages but they did not seem accurate, i think the ph was around 6.5. Typical double pails, with inner one drilled a dozen 1/16" holes in bottom. Temps now always between 70 and 80. and humidity around 34 to 37. Our home has a neverending problem with high levels of CO2 of 800 to 1100 PPM and i have not found a permanent ventilation solution, despite installing a basement air evacuation system and dehumidifyer down there it stays at 83% HUMIDITY, and did not help solve co2 issues. Past attempts i bought happy frog dirt on top of coco, and even used fish shit fertilizer that did not work and they had tiny flying bugs infested, so i dumped all outside and tried again now with Sphagnum peat moss base and Burpee Organic Growing Mix soil. Only just saw one of those small black winged spider walking type insects so i dont think thats a problem yet. These 2 pictures are of 12 autoflower of all different strains like kryptonite, amnesia gold, white widow, super hash, tutankamon, and galaxy. Always no matter the seeds, even though germinate well, always stunt at a few inches. I am just soooo tired inside myself after such promise of ease with growing AUTO and the extreme cost of the seeds i bought for all these tries, that it almost seems hopeless, but i of course never give up and will somehow overcome this growing nightmare somehow hopefully with your guidance. Oh, i have a small fan in the room too. No nutrients, because i cant find ones that help, other than coffee grounds, but i was going to try opening fresh tea bags and sprinkling it on top of the soil ? The plants in these pictures are at almost 6 weeks. That was a month ago on April 29, and they still look almost exactly the same, and some are flowering. It is just a total loss all over repeating, no matter what i do different.