Indoor Is my plant looking well ???

[Inspired]

Hi community.
This is my first grow:
Think Different
63 days old (have had a 2 weeks without any growth in the begenning)
20/24 light cycle
21 degres lights off/25 on
20L air pot
I'm giving her some nutes every week but it's a crappy tea I get in stores here and I'm pretty sure it's crap
Water PH is around 8 (I know it's a lot but I don't have PH down solution)

My question is: Is it normal the fan leaves turn yellow/brown for some, at that stage of flowering?
Can I cut these leaves?
How long until harvest (according to you) ?

 

[namvet25]

Use some lemon juice and get your ph down around 6.5. If you don't correct it your buds will suffer and it might be to late already to fix it. When you get the ph right give her a balanced nute that has nitrogen,phosphorous,and pottasium. Go ahead and remove the yellow and dead leaves.If you want to be succesfull growing autos you have to do the basics a have the necessary products needed to keep the ph in line and a good fert for your plants health.

 

[Inspired]

So, pH would be the reason? and thanks