Everything looks great to me except leafs look a little less green then first week. I will be fine tuning the nutrition for better NPK ratios, focusing on Nitrogen and Potassium more along with micronutrients. I hope I don't screw something up, wish me luck.
D9. Noticed possible slight nutrition burning from very bottom leaf. After some research, now i believe it's Nitrogen deficiency.
D10. Bottom leaves appear to be yellowing less. Will keep eye on it. Maybe leaf necrosis.
D.12 10 minutes before light out. Add nutrition and topping. My thinking is that healing is better during off cycle.
D.13 New growth, however lower leaves look like there is a little magnesium deficiency. Will be adjusting nutrition next feeding.
"My thinking is that healing is better during off cycle."
The best time to water is just before or at lights on. This keeps the humidity down during the "night".
@HornyMccoy, I edited mine too lol! Sorry! I see your setup now, and I think I see the problem!
Firstly, the carbon filter is first off too low, it needs to be right up at the top.
Secondly, the open duct vent right next to it is where all the air going out of that extractor is coming from... right in that hole and straight out through the filter. I think this is the reason your humidity problems your airflow is not working.
Can you seal up all of the holes except the ones at the bottom of the tent, but most especially that big hole right next to the filter! If for some reason you cannot seal that hole, move the carbon filter to the opposite side and as high as possible. But I really think that big hole is the problem.
@UnorthadoxDude, misspelled word. I meant the dehumidifier might need to be upgraded, tent has high humidity. I corrected Original post. Yes, there is a out-duct fan with cardon filter. The tent is in a large cabinet for a hidden grow. Holes in cabinet for air out-take/duct fan and in-take fan for ac. There is a picture of the inside of my setup in one of my grows. I'll add it to this one if not.
@HornyMccoy, Hey bud, yeah upgrade the dehumidifer is an option but for both running and purchase costs, getting a duct fan in there expelling air (if it doesn't already) would be a great upgrade. Unless you give them 12 hours of uninterrupted darkness, they shouldn't flower, it doesn't really happen by accident.
D.13: Well spotted mate that is really early magnesium deficiency... but you are growing in coco and make no mention of adding any CalMag? In coco CalMag is absolutely essential - if you want to see a really good example of this early magnesium deficiency progressing a bit, have a look at my diary "Nesia". It starts really early in week 2, and progresses until I fix it some time in week 3.