NOR CAL PLANT PROBLEMS.

Hello to all I need some help I have two plants that are all yellow what is going on. I have one Sweet Tooth and one BlueBerry. The sweet tooth is about a foot 12 1/4 and is very yellow bright yellow leaves drooping, blueberry has like this half green half yellow.Thire are two more but that seem to be doing a lil better. On the sweet tooth and a few other the tips are browning is that do to it being to close to the light or to much light. A friend told me that i should use some "lime" andn that it some type of nutrent that you use that will bring back the green to the plant.
What could the problem be. 600WATT Light in hydro hut using soil in pots.

Please Help what should I do and what could be the problem.

It needs food. Get a veg nutrient. 20-20-20. And a ph meter.

are you sure your not overwatering them and is your soil drainage good if you overwater the plant the roots will suffocate ??
good luck

To me it sounds like the nutrients are locked up or the roots are being attacked by fungus knats. See a bunch of knats? No, than the pH is off. Yes, you have to lime or you'll end up adjusting the pH, constantly. It is a lot easier to mix lime into the soil before you put your plant into it. Maybe someone will have good advise for adjusting your pH. I do not have that problem. I lime my soil and the pH stays there, for me. If the pH is off, the plants can't absorb the nutrients. Adding more nutrients will make things worse. They may need a good flush, have the pH adjusted and fertilizer.