Hello jd-11,
1. Do you have any pictures of your setup?
2. What
nutrients are you using, and how are you mixing them?
3. What is the air and water temps?
4. How much air are you getting to the roots?
5. How many hours of sunlight are they getting, and is the side near the window seem to be doing better?
6. Are you needing to replace much water between
nutrient changes?