Girl Scout Autoflower

[Upstnyer]

Okay so I've had experience growing and I'm fairly new to the Autoflower variety. No I have a hydroponic system that I set up with a few very strange one is the Girl Scout cookie. All my plants are doing great The Roots look great very long roots into the water wells. But my Girl Scout cookie the bottom biggest fan leaves started to Yellow and within a week I could tell they were going to die so I cut him off 9/2 tons of new growth every day the plant is very green doing great I cut the fan leaves off a little further out from the where they reach the plant because there was all sorts of new growth at the shaft and I didn't want to disturb that. Now the second set a big fan leaves is doing the same thing all my levels and nitrates are great but I just find this a little weird but I'm not too alarmed because it's the families and it's not anything else the plants doing great and tons of new growth. My question is is this normal with some varieties of Autoflower? I know you're going to ask I use pH perfect grow micro and Bloom and veg. Everything I've read points to nitrates but I'm thinking this might be normal for this strain. Any ideas

 

[Fuggzy]

A picture would help a lot.
Also try just filling this list, might make it easier. nothing personal, but your post is a bit difficult to follow.
Problem:
Medium:
Feed:
Strain:
Climate:
Additional info:

 

[Upstnyer]

Problem: Two bottom fan leave turned yellow brown and slowly died...I cut them off...week later the next 2 bottom fan leaves did same thing so I clipped them
Medium: Hydro/net pots clay beads
Feed: Ph Perfect 3 part Mico/veg/bloom
Strain:GirlScout
Climate:Closet grow 75 degrees using cob and panel led lights
Additional info: the plant is doing great has new growth and growing daily just effects bottom leaves

 

[Upstnyer]

3 pictures of the plant and last is the bottom fan leaves I cut off..Cut of set of 2 last week then a set this week. I know from growing you can remove big fan leaves as they are a waste of resources and removing allows more energy and nutrients for the new growth. Just don't want this to happen to rest of plant. This plant is 3 weeks old

 

[Upstnyer]

And here are 3 other plants in the same unit that share 6 gallons of water circulated to each netpot by a pump and I also have a aerator pump in water.

 

[Fuggzy]

I am going to say it is a calcium def. Are you using RO/distilled water? Do you have a cal/mag additive? A lot of micro nutes do no contain it. Led's in general make a plant use it up more calcium. Another thing could be if the leaves are not getting enough light, but at that height, I would not guess that.

 

[Upstnyer]

No I'm not using RO or distilled whatever I do have a RO system in my house but the bladder in holding tank must be broke because getting water I have to bypass it.I'm do for a water change this weekend so I'll use RO. I'll also get some calcium/mag to add. I'm really not too worried because big bottom fan leaves steal from where you really want nutrition to go but these will be in bud phase soon so I don't want issues then. And as you can see these plants are doing very well otherwise!

 

[Fuggzy]

And as you can see these plants are doing very well otherwise!

Just to let you know RO water does NOT contain Calcium. Well/tap water does however. Here is a bit to read if you would like.

Reverse Osmosis and Removal of Minerals from Drinking Water
Reverse Osmosis will generally remove salt, manganese, iron, flouride, lead, and calcium (Binnie et. al., 2002). Most mineral constituents of water are physically larger than water molecules and they are trapped by the semi-permeable membrane and removed from drinking water when filtered through a RO (AllAboutWater.org, 2004). Meanwhile, consumers are concerned about the removal of minerals from their drinking water.

http://www.iwawaterwiki.org/xwiki/bin/view/Articles/RO_Minerals

There are a few Cal/Mags that do not contain nitrogen. The one I have is OilyCann by Earth Juice, and it is 100% organic, and safe for hydro. Now I am not sure if this is true for all/most cal/mag, but OilyCann also contains humic acid.

 

[Upstnyer]

Thanks man I picked up the PH Perfect version of that and some Rhino root stuff to coat and promote good roots and root growth....been using tha Cal/mag for day and half and see a difference already...it didn't help leaves already going bad but looks deeper green everywhere else...THANKS!!!

 

[Upstnyer]

This is what I added to my reg nutrition