get us some pics in normal light and answer these questions;

1. Are you growing from seed or clones?
2. How old are your plants?
3. How tall are your plants?
4. What size containers are they planted in?
5. What is your soil mix?
6. How often do you water and what type of water do you use?
7. What is the pH of your water?
8. What kind of fertilizer do you use and what is its NPK ratio?
9. Do you foliar feed or spray your plants with anything?
10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights")
11. How close are your lights to the plants?
12. What size is your grow space in square feet?
13. What is the temperature and humidity in your grow space?
14. What is the pH of the soil?
15. Have you noticed any insect activity in your grow space?
16. How much experience do you have growing?

thats not nutrient burn btw

1. Are you growing from seed or clones? CLONE
2. How old are your plants? SHE IS 8 WEEKS OLD
3. How tall are your plants? SHE IS 24IN
4. What size containers are they planted in? 3 GAL
5. What is your soil mix? FF HAPPY FROG WITH 10% PERALITE
6. How often do you water and what type of water do you use? I FEED TWICE A WEEK
7. What is the pH of your water?6.2
8. What kind of fertilizer do you use and what is its NPK ratio?NPK I DON'T KNOW BUT I USE FF TRIO. THE RECOMMENDED AMOUNT
9. Do you foliar feed or spray your plants with anything?NO
10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights") 1000W HPS BUT BALLEST IS AT 600W
11. How close are your lights to the plants? 36IN
12. What size is your grow space in square feet?80 SQUAR FEET
13. What is the temperature and humidity in your grow space?82°F DURING THE DAY AND 76°AT NIGHT
14. What is the pH of the soil? 7
15. Have you noticed any insect activity in your grow space?NO
16. How much experience do you have growing? THIS IS MY SECOND GROW.

WILL POST A PIC IN NORMAL LIGHT WHEN I GET OFF WORK

Out of the five plants this and one other one are doing it. the other isn't as bad though. They were all clones but 2 that started as seeds.

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If your using the recomended amount of food chances are your overfeeding a little but im sure someone with more experience will chime in soon

You also left out your rh thats important for a lot of reasons the curl on those leaves could also be from the rh being too low or possibly light burn with the upward curl