Hello, my plants continue to turn yellow. I increased the light distance to 39 inches and the dimmer is 100%. Please help me?

Ph. Think answer is there. Make sure you load 6.3 or in this area.

You are showing a nitrogen deficiency. Likely have some ph issues as well starting. I would look into addressing both these issues as well. Plus any temp over 82f is not good unless you have additional equipment.

Buddy, you have got to water until runoff. Water with feed in the water, until It starts dripping out of the pot. If you feed 1.5l of water... make sure 10-20% of 1.5l comes out the holes at the bottom. If you don't have a ph pen get one. Check ppms. You always want to check the ppms of the feed you give them. And check the ppms of the feed that comes out the bottom of the holes as runoff, it will tell you if their low or high. Reading your previous questions, amd you diary. It looks like temp could be a issue.. if your temp is over 100 degrees at night time then this could be the reason for stunted growth. Some strains like colder climates some like hotter climates. Furthermore increase your feedings to every 2 or 3 days. Only allow it to dry back 40-50%.. don't let it dry back 100% before feeding again. Feed more often, but make sure you have the correct amount of food in the water for stage of life that their in. Each nute company gives a weekly breakdown and their recommended ppms, or EC. Learn what ppm and EC means.. and start checking it. It will tell you if your plants are hungry or are over fed and are locking out. I would now say that, combined with 100° Temps, and only feeding every 4 or 5 days is the reasons their small and yellow. They look nitrogen deficient. Feed more often and until runoff to flush old nutes out to prevent a lockout. Check ppms and raise the light to 50% and each day more until the highest you want to go with your light. Get the Temps dialed in, get the light back up to 100% or as close as your comfortable with depending on the size of light you have. Feed more often and check ppms. That's your answer and it will work. Please select me as the answer so I have a chance to win grower if the month contest! Good luck, feel free to message me anytime.

Your plants are dying, they need water, look how dry the soil is. Also they need Nitrogen in that water. get some BioBizz - BioGrow in there. 👌