Hello all. Ive always grown autos in soil, multiple strains. Since I started growing about 10 years ago Ive always had varying degrees of yellowing/brown spots/red stems/stunted growth when going into flower. I've done a lot of research, asked a lot of questions & tried most things people have suggested over the years (hard water nutrients, different soils, various amendments, height of lights etc. etc. ) Only thing I haven't tried is changing the water. EC of my tap water is about 0.7, PH 8. From all my research it seems there could be some kind of calcium imbalance or something similar in the water that the plants don't like when they hit flower. Environment is dialled in fine.
As R/O water is not an option for me I'm now trying bottled spring water (don't know why i haven't tried before) - Scottish mountain water from Sainsburys to be exact. It's EC reads about 0.2, PH 7.
With the EC of this bottled water so low could I run into any problems ? Maybe I should do a 50/50 mix of tap & bottled? Also looking for recommendations as to what kind of nutrients would fit best with this bottled water?
Thanks for any help
Bookmarks