CreamDavil first of all showed its gender and has already bloomed and given a height of 30 cm. One Jack Herer with yellowness on the young top leaves (reminiscent of iron deficiency) and a devil shows nitrogen deficit, and WW still has not shown flowers. And the Girl Scouts too. The leaves of the Hemdavg are like a hand, but have not yet gone to bloom. (15.10) Hope
CO2-cylinder TNB will help plants to avoid luck of CO2. However i have no any device to measure its concentration in the air.
It looks like your suffering from a sulfur deficiency you can tell cause it looks like the yellowing starts at the back of the leaf and then moves to the tip, it's also why your buds aren't fattening up. You can fix the issue by adding a bit of Epsom salt to your ph balance water.