Hello HiTechGardener,
1. What type of system are you growing in?
2. What
nutrients are you using, and did you fallow the manufactures directions?
3. Are you sure you washed the roots carefully, not causing much damage?
4. How close is the light to the plants?
5. What is the air temp around the plants?
6. How often do you water the roots?
7. Is
grow rocks your only growing media?
8. What is the water temp?
P.S.
Do you have any pictures of the plants and setup?