A little update: I think the reason for the yellow leaves and brown spots was the fact that the vegetative period was too long and i keep watering with too weak solution. When I switched to flowering nutes, the problem was gone.
Hi guys and thank you for the detailed answers.
Sorry its took me time to reply, have been off for vacation.
I got a pH meter, tested the water with the nutes added and it shows 6.5 ... something other is wrong then..
Maybe it's the vegetative period that's too long?
(53 days on 18/6)...
No ideas?
My suspicion was that the ph is slightly low (those litmus papers are garbage) but the guy at the hydro shop said it's not likely.
He thinks the plant burns energy to warm itself because soil temperature is 68. That's why the leaves yellowing and that's normal.
IMO, i'm getting ph...
Hi all,
After much reading, trying my first educational grow with one special lady:
Feminized Dinafem White Widow
Started growing in a cabinet that will be used for clones later. I will move her to a grow tent soon.
Hope it's ok i'm using the metric system :Namaste:
25/12/2013: Started...