ph 7,0 7 weeks flowering

7.0 won't cause any real problems. 7.6 and upwards will. Continue with what you are doing, except do cut back on the nitrogen. If it is the Blue Dream in particular, that has "stalled", this seems to be a habit of this strain. Both myself and a friend have grown this plant multiple times and we have both noticed that Blue Dream has a habit of having a 7-15 day "sleep" about half way through flowering, then taking off again to finish and bulk up quickly, during the last third of the flowering phase. Hope this helps.... Organoman..

Hi there, pH 7.0 can’t cause very serious problems.I have high pH problems with my soil.And yes I always have that kind of dark green leaves and sometimes Nitrogen toxicity follow up.That high pH cause the soil to uptake more Nitrogen than it should and can cause other nutrient to be lockout.I overcome that by using RO water and adjust my water pH around 6.0~6.5.You can flush if you want to.I think it will take so long to lower your soil pH and can cause some unwanted problems after flushing.pH can also be rise again later on.So I would like to recommend you to adjust your water pH around 6.0~6.5 whenever you watered and flush only when she is closed to harvest. Happy growing... ✌️