Day 43!
I need some help I think. The GhazeXc99Xc99 is looking really good, there is no problem, but the Think Differents are start to yellowing... All the 3 plant. It start from the bottom of the plant and its creeping up.
Right now its not so hard, but I can see it with my eyes. At first they were absolutly dark green, and now some of the bigger leafs are start to turn yellow. Right now they are light green. I fight with the same problem in my first grow, but I can finish it with success. Some info, what maybe help for an expert to tell me what is the problem. I watering them 2 days with 0.5 L water, and I give them epsom salt and BioBizz Autoflowering supermix with every feeding. (2 tea spoon epsom salt, and 10ml nute for 2 liter water) The PH is around 6.5-6.8. I give them 250W HPS. The temp is around 28C in the box, when the light on.They are in 20/4. What is my problem???
And here is another thing. I have no experience with regular seeds, this is just my 2nd grow. The seedling are show their sex I think, but I'm not sure whitch is fem. I write my suggestions with pictures.
I think they are boys:





They are the girls I think:







And some pics from the box:






I hope someone could help me! Thanks in advice!