Frist grow autoflowers

This depends a lot on your conditions, but in this stage bit a lot of water is needed. I stick to 50-70ml per day

Gottagrowsometime is spot on here... that soil looks TERRIBLY dry... you need to be giving it more water AROUND the seedling to encourage the roots to spread out and grow. If you want to start feeding it, I would do it only very slowly - like maybe 1/4 strength - but give that poor thing some water and water DEEPLY... then make sure the soil dries out before you water it again.... For an idea of how the roots grow, I grow in DWC so I can actually SEE the roots as they develop... my little Pinky's roots just hit the water when she was 5 days old... therefore, the root that got to the water was a good 4-5" long.... Roots grow to find water.... Good luck...