Week 2. Plant is showing some slight twisting and yellowing. I've had this before and I wasn't really certain what was happening. I'm testing the theory that it's the pH of my water by lowering it from 6.5 to around 6.3. Hopefully that will have a positive effect on new growth.
Also growing this. having same issue. You may be ready to transplant. The bottom leaves will yellow. If that is happening, time to add 250 ppm grow nutrients. 6.5 PH should be great.