Help needed for my first grow (close to end)

[BudsLover]

Good evening ladies and gentlemen!
I have some problem with my girls close to the end.
I have one colorado cookie which is 62days old today she is in 12l coco with 30%perlitte, sharing 250HPS with sis. Im useing cooltube its about 20cm far from the main cola.She did well. Once i had ph problem when i used tap water to fed them i missed once a feeding i thought my pots heavy enough but i didnt know the roots raise the ph up and i switched back to RO water on this time its helped. Im useing hesi coco starter kit to feeding them so she getting in 1l
-5ml Hesi coco(NPK 3-4-5)
-1ml Hesi PK 13/14
-1 ml ph- to get 5.0 ph
- 2ml hesi Boost
- hesi supervit 1drop for 5l
Every helps is appreciate!

I also have problem with my blue automazar started to show the brown thing on her leaves
She is getting almost the same except she is getting 0,5ml PK 13/14 and i didnt give her hesi boost.

 

[BudsLover]

Blue auto mazar day 55.

May she need more PK?

 

[namvet25]

Your light is too close at 8 inches causing leaf curl and discoloration so I would move it up at least ten inches.I would stop using the 3/4/5 and up the dose of 13/14.I also see calcium def so you need to start using it.Also try raising your ph closer to 5.8 or six.

 

[BudsLover]

Thank you very much your quick answer @namvet25 !
What ya think how much i need to raise my pk 13/14 dose if i stopping with 5ml 3-4-5?