Indoor PLEASE HELP ME VERY CONFUSED!

[kayreen]

PLEASE SOMEONE HELP ME OUT any ideas whats wrong with my girl, she hasnt been given nutes as i got told the plagron bat mix with all mix will be ok till flowing but she has come out with small yellow spots and some brown and a leathery crispy bit on one of the fan leaves (also starting to show on anohter) and slight yellowing on the tips of the new leaves im worried please help!!! <3 light is 18 inches away my water ph is 7.4 and my temps are 20 to 27

 

[bad dragon bzzz]

id only be guessing or taking a wild stab in the dark as to what the issue may be
this may help
https://www.autoflower.org/threads/...ill-out-first-with-the-data-that-matta.45991/
good luck n keep er lit

 

[kayreen]

Problem: plant as pictured. yellow and brown spots with some of the fan leaves leathery and crispy

Medium/grow method: plagron bat mix and plagron allmix 50/50

Feed: and supplements used: no nutes used on this one

water source: tap water left for over 24 hours a time with a ph of 7.3

Strain/age: formula 1 auto flowering

light used: 600w mh 18 inches away from plants 24hrs

Climate: 20-27

Additional info: noticed the spots a few days ago then the crispy leaf showed up this morning

 

[beaubud]

Hello mate, I believe your pH should be closer to 5.8. it's quite high at the moment. Might be worth lifting the light up another inch or 2 until they get a big bigger as well. Looks a bit like some sort of nutrient issue but to be honest I'm not really sure.

Sent from my ONEPLUS A6003 using Tapatalk

 

[namvet25]

Your PH is to high so next watering lower closer to 6.3 to 6.5.Also move your light up to 24 inches during vegging.Plants need rest time so 24hr lights on is not needed.Lights on should not be more than 18hours.

 

[kayreen]

my run off is 9.3ph my water is 7.3 i will lower the ph of my water and see if that helps

 

[HighnDry]

Hey, how often are you watering? I had similar issues on my 1st (and only) grow with this strain in particular out of 2 I grew. I was watering too often so flushed and watered less and it didn't reoccur. I can tell you it smokes very nicely indeed. Got about 30g dry bud per plant with a very inefficient setup and grower ha.

 

[Waira]

my run off is 9.3ph my water is 7.3 i will lower the ph of my water and see if that helps

whaaa?! that's crazy high mate, are you sure your meter is in good shape, recently calibrated, properly stored in the right solution and all that? I can't imagine how the soil became so loaded with alkaline stuff, not even overdosing of lime will do that pH jump,.... do you have a TDS or EC meter? test the water only first,.....
That blend may be rich, but not truly balanced in the complete nutrient profile, they are not "water only" soils,...
Symptoms look kinda odd,.. might be P defc. or lockout defc. from off pH,....