What kind of soil are you using?

Does it have nutrients in it?

When was your last transplant?

For the best results, stick to nutrients designed for cannabis like Fox Farms. However it's possible to use general nutrients. You can always look at the Fox Farms feeding schedule and compare the NPK ratios of their products to what you have or can find.

Your plant looks pretty good, a little stretched and showing signs of N deficiency, but only minor. Frosted gave good advice, start with a small dose and see how she reacts. If the tips of the leaves begin to burn, you gave too much.

Happy growing :jointsmile: