Plant Deficiency Picture Diagram - Plant Deficiencies - Aquatic Plant Central

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Old 06-02-2009, 11:02 PM   #1 (permalink)
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Default Plant Deficiency Picture Diagram

I took the time just now to go through and draw out most of the common plant deficiencies in pictoral form. This diagram is by no means an exhaustive reference for all deficiencies and certain plants vary in their symptoms, but in general most deficiencies will look something like the diagram below.

There is a red dotted line that shows deficiencies that show up in new growth and deficiencies that show up in older growth, this is an important line and attention should be paid to it!!

Hope this helps people identify what they have a bit better.

***Edit***
This was updated as of 2016 and is correct to the best of my knowledge. Iron deficiency is seen in the new leaves only.




***Edit***
THE PHOTO BELOW IS AN OLD VERSION (Notice the red line was shifted downwards, meaning iron deficiency occurs only in the new leaves - NOT the entire plant on most aquatic species).




Last edited by Zapins; 08-23-2016 at 08:20 PM.. Reason: Updated diagram
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Old 06-03-2009, 12:34 AM   #2 (permalink)
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Default Re: Plant Deficiency Picture Diagram

Nice. Can a moderator make this a sticky ?
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Old 06-03-2009, 10:28 AM   #3 (permalink)
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Default Re: Plant Deficiency Picture Diagram

What about leaves turning transparent? Would that fit under magnesium deficiency?

Fantastic diagram by the way! I'll link to it on my blog.
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Old 06-03-2009, 01:59 PM   #4 (permalink)
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Default Re: Plant Deficiency Picture Diagram

Magnesium deficiency is characterized by very dark green leaf veins and some kind of discoloration in the tissue between veins. The exact color depends on the plant in question, so clear leaf tissue is possible.

Clear leaves sounds like a lack of light to me, but it depends where the problem shows up on the plant and could be something different entirely.
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Old 06-05-2009, 07:01 AM   #5 (permalink)
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Default Re: Plant Deficiency Picture Diagram

Nice graphic, Zapins! For phosphate deficiency, you can often tell the difference between that and nitrate deficiency, if green spot algae is also on the older leaves/glass. That would likely indicate lack of P. Fantastic job!
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Old 06-17-2009, 03:01 PM   #6 (permalink)
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Default Re: Plant Deficiency Picture Diagram

Thanks very much Zapins for taking the time to draw this very educational diagram. To the best of my knowledge it summarizes quite well what we know about deficiency symptoms in aquatics so far with regards to macro elements.

While the graphic explains issues when macros are in short supply let me add to this when traces are deficient:
New growth in most species will appear twisted and reduced in size. This is in accordance with knowledgeable people such as Amano and the guys from Seachem.

This finding gets overlooked quite often as aquarists seem to concentrate on macros these days primarily.


Thanks again, Detlef

Last edited by detlef; 06-18-2009 at 06:18 AM..
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Old 07-06-2009, 12:03 PM   #7 (permalink)
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Default Re: Plant Deficiency Picture Diagram

Quote:
Originally Posted by detlef View Post
Thanks very much Zapins for taking the time to draw this very educational diagram. To the best of my knowledge it summarizes quite well what we know about deficiency symptoms in aquatics so far with regards to macro elements.

While the graphic explains issues when macros are in short supply let me add to this when traces are deficient:
New growth in most species will appear twisted and reduced in size. This is in accordance with knowledgeable people such as Amano and the guys from Seachem.

This finding gets overlooked quite often as aquarists seem to concentrate on macros these days primarily.


Thanks again, Detlef
Hi Detlef..

Well, I can't exactly agree.. perhaps in SEVERE deficiency..

Trace deficiency will show in new growth. This new growth will be lighter in color. It's quite easy to see.

What you describe is much more likely to come from Calcium, which is also shown in the image.
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Old 12-28-2009, 11:58 PM   #8 (permalink)
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Default Re: Plant Deficiency Picture Diagram

And I forgot to underline...

you CAN see what detlef describes even though it is micronutrients that are missing.. BUT it is only in extreme cases.. meaning.. you won't experience it as a 'normal' deficiency due to dosing too little.. only if you outright don't dose at all..
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Old 12-29-2009, 06:05 AM   #9 (permalink)
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Default Re: Plant Deficiency Picture Diagram

Micro deficiencies are rarely encountered unless it is an iron deficiency, that is why I didn't include them in the diagram. But you are both right. Some micros cause the new growth the be pale (iron), others cause the new growth to be twisted (boron).
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Old 07-03-2010, 07:06 AM   #10 (permalink)
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Default Re: Plant Deficiency Picture Diagram

Question: for a potassium deficiency, using PPS dosing, which would you increase?
Potassium Nitrate KNO3
Potassium Sulfate K2SO4
Mono-Potassium Phosphate KH2PO4
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