Novas folhas com pontas amarelas

It does look like light stress. If you don't have an option to dim your lights and can't move your lights any higher, I would try to lst. In the past I have combined mild supercropping and lst on the highest points when I couldn't move my light higher. I would also add an extra .5 mL of cal-mag per gallon of feed water. Sometimes 1 mL per gallon extra. Adding CO2 can allow your plants to function properly with higher light intensity. You can also cut down the length of time that your lights are on. Because the light is closer, it's intensity is higher so you can run it for a shorter time with similar results. Research daily lighting integral(dli). It can describe what I mean about the higher intensity for a shorter period evening out for plant health. Those are the only things I can think to help with the light issue. Happy growing and good luck Bud!