Love1

I flushed the soil with 6.3ph water. Color change stopped last week. Waited for some days, fed bio bloom from greenhouse and saw that the growing resumed. Suddenly today i had some grean leaves again. Checked the ph of soil and had 7ph on the first 10cm layer, after that it went down to 6.8 and were stable on 6.7 downwards. So once again I flushed, this time with 7liter of water twice over with some hours between for maximum flush. Managed to drop ph to 6.1 in soil, but I simply can not understand how the ph goes up drastically. My own thoughts are that i am not watering enough so the soil does not drip after watering, and this leads to buildup of salts in the soil that gives me an ph problem after some time. Does anyone have experience with bio bloom from greenhouse and that this feed does alter PH? Idk, just trying to survive my first grow and learn as m as possible:D