Iron Supplement question

Doctor Trevor

Doctor Trevor

Well-Known Member
My Blue Crack has developed an iron deficiency (see attached).

I want to go to the nearby plant shop for a supplement but, as it's a holiday, the store is closed. Could I use an iron supplement from the local pharmacy? Or should I wait until I can buy from the plant store? It might be a few days.
462568645_1030447342431642_3780399302334566190_n.jpg
 
Doctor Trevor said:
Could I use an iron supplement from the local pharmacy? Or should I wait until I can buy from the plant store? It might be a few days.
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Go to a tropical fish store. Many of them carry products for use in aquariums that have live plants. The store should have an iron supplement for helping when these living plants are not getting enough iron from the water or the substrate that is on the bottom of the tank.

Might be cheaper to get it from the aquarium shop considering the number of gallons of water used for tropical fish tanks and how often that water is changed/replaced.
 
I'll visit the local pet shop, today, though I'm sure it'll be closed. Thanks.

EDIT: They were open but didn't have it.
 
Phytoplankton said:
I don't believe that's an Iron deficiency. An Iron deficiency starts with new growth at the top of the plant, not the lower leaves. It will eventually affect the lower leaves, but it starts with new growth. Here's what an iron deficiency looks like:

iron-deficiency-cannabis.jpg
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What would you think this is?
 
What stage of growth are you in? How old are the plants? How big are the containers, what's the media, what/when are you feeding? It looks to me like they want a little more nutes, but that said, those are old fan leaves, then do eventually wear out. The leaves above them look good. The problem with diagnosing leaves is that in many cases the symptoms of toxcicity and deficiency are very similar, so background information is important.
 
^ What Phyto said
Middle of the plant is most likely Ca or P
Micros appear at the tips, mobiles start lower except towards flower when the plant will drain those two big fat fuck off fan leaves below the top cola first
You can observe that in droughting
 
Ursula is in a one gallon pot, in FF Ocean Forest; I was planning on moving her to a ten gallon pot tomorrow or Friday. I'm feeding her the FF Dirty Dozen every four days (I water her between each feeding) She is in veg for six weeks now. I flushed her soil a few days back. Herr journal is listed at the bottom of my sig.

What are micros and mobiles?
 
I use Calmag Xtra when I feed her. I've have calcium/magnesium deficiency in the past. The entire leaf turns yellow. The veins aren't in this case.
 
Doctor Trevor said:
I use Calmag Xtra when I feed her. I've have calcium/magnesium deficiency in the past. The entire leaf turns yellow. The veins aren't in this case.
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It means between the veins, not the veins itself.

If you're feeding enough CalMag, then it's most likely a lockout.

If you're also feeding a Micro nutrient, there's enough iron to take it through out, personally I've never had an iron deficiency with cannabis when I'm using a micro.

By all means, if you're sure it's iron, go for it. I'm just sharing my personal experience.
 
I appreciate it.

I'll transpot tomorrow and give her some CalMag Xtra with the water.
 
Doctor Trevor said:
Ursula is in a one gallon pot, in FF Ocean Forest; I was planning on moving her to a ten gallon pot tomorrow or Friday. I'm feeding her the FF Dirty Dozen every four days (I water her between each feeding) She is in veg for six weeks now. I flushed her soil a few days back. Herr journal is listed at the bottom of my sig.

What are micros and mobiles?
Click to expand...
Micros are micronutrients that the plant needs, like sulfur, manganese, boron, etc. if your feeding the ff suite, there’s plenty.
 
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