Auto Skunk #1 & Auto Pink Grapefruit

Hi there, both Skunk 01 plants are in transition phase to flowering but preflowers have appeared on APG, so I put this week as for flowering. They have been on a mix of Grow and Bloom ferilizer 0.2 and 0.2 g of each, and once or twice a week, I spray them using a solution 0.5 g/L Flower Power Foliar fertilizer (470 ppm). Fertigations, as usual, are once a day in the morning but in some cases I started to see some salt builid-up, so I fertigated twice in the day with a solution half strength from the usual I was using. The strength of solutions is about 550 ppm, and that dosage is very well tolerated (I usually go low on fertilizers because I'd rather not giving them all they can take, but not having deficiencies because of overfertilization instead). I almost forgot to say, I had been spraying foliar fertilizer every day for three or four days in a row, but then luckily I saw the dreaded "hook" on some of the APG leaves, meaning she was overdosed on Nitrogen (Foliar fert is 15 15 15) so I interrupted the treatment with Foliar for her and reduced to twice a week spraying for the folowing two weeks for the other two). The previous week I started doing some LST on Tweede, because I wanted to expand the canopy and I chose her because she was growing tall and vigorous and she has responded very well to training! So I decided I can have a few more tops (she hasn't shown preflowers yet) and went one step further and supercropped heavily. In a couple of hours she'd recover! APG is lanky and delicate and showing preflowers, so I left her alone, I think I have more seeds for later ;) Day 7 Week 6 the Sjunk #1 are completely recovered so I removed some big leaves that are obstructing the path of light to some grow tips. Fertigation was 0.2 g/L Grow and 0.2 g/L Bloom for Skunk#1 and 0.4 g/L Bloom for APG, the remaining ingredients were kept the same concentration. I also removed a couple big fan leaves from APG.