Yellow+curling leaves

oonzpoonz

Member
These leaves were fine about 3 days ago.

**EDIT: Seems like they're turning orange
Some info:

Strain: Red Dragon/clone
27 days into flowering
Fox Farms 3 set nutrients (tiger bloom/big bloom/grow big)
MG soil

PICS:

 

oonzpoonz

Member
OK, I think it may be calcium deficiency... But I'm not sure and I can't find any other pics/posts that are similar to my prob :(
 

dudeoflife

Well-Known Member
buuuump!!! I fear for their lives!!! :cry:

OUCH! This is interesting, because it appears as though only the new growth is affected.

This could be a metal deficiency, with is brought on by obscene amounts of P.

Calcium looks more like a burn that causes the leaves to slowly disintegrate and just fall apart. Also, new, fresh, incoming growth is affected more so than the already established fresher (newer) growth.

i'm thinking either zinc or iron for this one.
 

oonzpoonz

Member
OUCH! This is interesting, because it appears as though only the new growth is affected.

This could be a metal deficiency, with is brought on by obscene amounts of P.

Calcium looks more like a burn that causes the leaves to slowly disintegrate and just fall apart. Also, new, fresh, incoming growth is affected more so than the already established fresher (newer) growth.

i'm thinking either zinc or iron for this one.
How would I go about fixing this? and thank for your reply!

EDIT: I found this post "i use fox farms and tend to run into magnesium def, zinc def, and boron def. To keep this from happening i use zinc plated screws and washers mixed in my soil."

I'm guessing I have the same problem... Should I get some zinc screws/water and put em on top of my soil or? Also, should I flush at all?
 

dudeoflife

Well-Known Member
Ok. What did you feed those babies, first of all?

Gimme the lowdown-- your water-- tap or ro'distilled starting ppm if any

what you fed them three days ago

and also, if it was different than what you've been normally feeding them, ie additives.

Tell me everything. Well, not EVERYTHING...
 

oonzpoonz

Member
I feed them foxfarms like I mentioned in my first post. The water is tap water that I let sit for a few days so the chlorine evaporates. That's what I mix the nutes with, and when I feed just regular water I give her Arrowhead water. Actually I started having problems around the time I started using arrowhead I think, but I doubt that's the issue since the water is fine. And three days ago I feed them everything normally. But I started getting problems when I started my 3rd week of flowering which is when the foxfarms nutes changed a bit.. Sorry I;m typing this really fast cause I got to go but tell me if You need any other info.. and sorry for the wall of text!!!!! How do I give rep for your help?

EDIT: before I leave, don't know anything about ppm of water or whatever sorry
 

dudeoflife

Well-Known Member
OK, so you switched to arrowhead water?

Whatever the case, your plants were doing well, then you switched your water source. That could be your problem.

Arrowhead is spring water. It COULD have sodium, or a ridiculous amount of Ca in it. Not sure.

If it does have sodium (Na) in it, it will compete with the trace metals, causing that lovely yellowing you see.

It will also get worse if you add nutes rich in Phosphorus, ie most bloom nutrients.

My advice would be to go back to the tap, and stick with it. (If it ain't broke, don't fix it.)

And I'm not 100% confident to say to flush today, but when the pots lighten up a bit, flush with distilled water. This will clear your medium, and you can start off on a clean slate for your next feeding. With tap!

This is tricky, though, because you don't know exactly what you are working with.
 

dudeoflife

Well-Known Member
And X the washers and screws. You can maybe soak a few in h2o and give it a foliar spray lol but I've never heard of such a thing.

You don't want to add it to your soil, because too much zinc is just as horrible as too little. It's a trace metal that only has about 50 ppm of play before shit hits the fan. You don't know how much zinc you'd be giving 'em, so keep it out of the soil.
 

oonzpoonz

Member
so should I just flush her and stop all nutes? Also, instead of feeding with tap water could I just feed her distilled water, i imagine itd be better
 

dudeoflife

Well-Known Member
And PS- Don't worry about the chlorine. It's another myth. Most of it is already dissolved, what you smell is incidental Cl. Most of it still remains in tap water, and you know what?

Plants actually REQUIRE chlorine. Another trace mineral, just like Zn and Fe. Cl is used is photosynthesis and cell division.

In fact, plants can even get Cl deficiencies!
 

dudeoflife

Well-Known Member
so should I just flush her and stop all nutes? Also, instead of feeding with tap water could I just feed her distilled water, i imagine itd be better
When it is time, when the pots get light, water with distilled h20. Wait for them to dry, then feed with your nutes + tap water.

Only use distilled for the flush. Forget the other waters beyond that. Tap tap tap.

Tap got you that far.

Use your arrowhead water for your lemonade.

Become friends with your tap water. If it ain't broke, don't fix it.
 
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