TiAMAT - Speedy Chile (first growth)

Overall not a bad week. After being away for 2 nights i was pleased that nothing extreme happened to my girl. However, Ph of the soil is becoming more of a concern now. I only been watering with dechlorinated tap water at around ph 7.3 with some runoff which came out at 6, then 6.3. Also the runoff water has still very high ppm value. First time I measured it was at 3600! wtf. I havnt even fed my girl yet, it must be this shitty mixure of soil. gradually it went down to 2200ppm, then 1900, then 1000 and now its just under 1000...but still now feed. my tapwater is pretty hard though and has 400ppm. I want to flip to FLOWER soon but really want to sort of the soil first and the deficiencies. so might have to hold off another week or so if needed. Also first time I defoliated. only took of few leafs to improve light and air penetration. Left some big fan leafs at the bottom to see the progress of deficiencies as they might take those unhealthy leafs soon anyway and its good for me to use them as a guide.