Unidentifiable Deficiency

[aMdD]

Hi folks!

This plant was germinated from a seed of unknown origins, most likely from the Samoa Cookie strain. It germinated normally, but then started to grow oddly as a seedling. After two weeks, we transplanted it to a bigger pot with coco and perlite & a T5 light and then it started showing some magnesium deficiency. Switched to a Viparspectra 300W full spectrum LED. It's been growing in a 3 gal fabric pot for the past 40 days and cannot figure out why the leaves are not fanning out and why it's growing funny.

Should I continue to grow it or should I stop dumping resources into it? If I continue with the growth, what should I be doing differently to correct its growth?

Pics for reference:

 

[slownickel]

You know that coco is full of sodium, right?

That can cause the visible phosphorus deficiency (purple stems).

You need to flush heavy. A bit of gypsum post flush would help.

Some MAP (mono ammonium phosphate) foliar at 0.5% would do wonders.

 

[Creeperpark]

I would continue with the growth, but check the runoff for excess sodium like slownickel suggests.

 

[TexanTerps]

SLownickel I believe hit the nail on the head. Test runoff. Foliar P will address the P deficiency bypassing any lockup condition you may have in the soil allowing you to flush while keeping healthy as possible.

 

[there goes edro]

What's your water source?

 

[prune]

Eh, it doesn't really look that bad, but what little I can see points to "Too many chef's" disease, (over-stacked nodes that fry the plants normal hormonal process). Trim off every other node (or more!) and watch the plant open up and start stretching.

 

[SuperBadGrower]

I think its just a runt. It has nothing to do with any nutrients. I've grown something that looked almost exactly like this also from "cookies" family (unverified). Slow veg, super short nodes, dark leaves, weird fingers, very red petioles. Mutations in all seeds of the batch.

 

[aMdD]

Thank you for all the feedback. Here’s an update: I’ve flushed the 3 gallon and tested the initial runoff and had a whopping 1.5ec. I flushed it down with tap water (0.3ec) down time 0.3ec runoff. Then I fed it with an 1.0ec. New growth seems to look better but as SuperBadGrower suggested, this might be a runt since the other two siblings look perfectly fine. In the meantime, I’ll continue to grow this as a science experiment.

 

[SuperBadGrower]

If you germinate 20 seeds and one plant doesn't look right the forums people will still have you chasing carrots saying its nutrients or PH almost every time. Magical thinking

 

[Lester Beans]

Slownickel nailed that one. Chasing carrots or not, he was spot on. Plant does look much after having some of that salt out.

 

[slownickel]

Slownickel nailed that one. Chasing carrots or not, he was spot on. Plant does look much after having some of that salt out.

Guess there was a carrot stuck somewhere,,,kids.