Week 5, now we are talking, she is stretching and the roots are growing at a really nice rate.
Feeding is almost at the recommended max without her showing signs of overfeeding, I always increase and try to push the plant but you need to go slow,
step by step and see how she reacts, always give her 48 hours to see how she copes with the new dose, If she looks healthy stick to dose for the week and increase the following.
A good trick to see if you plant wants more of less fertilizer is reading the ppm and check when the res level is lower after 3 days or so, if the ppm rises but the water level doesn't go down quick she has to much feeding.
If the PPM stay the same or drop with quick water intake means she takes it in very happy and maybe can take more.
Will continue to rise the dose till we reach the recommended max of 2.5ml/l, might play with the ratio later on.