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Sick Plant [Solved] Need help diagnosing deficiency


ShredMonkey
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Eucalipto
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I have 2 sick plants. Left to right the second one is showing deficiency and the micro grow is also looking pretty bad. 

 

They are all in the same soil. TG's recipe with a few local organic substitutes. Not all of them are sick. Left to right the third plant and the micro are the same strain. The other 3 are a different strain. 

 

For the 2nd plant I think it's a potassium deficiency? What do you guys think? Weird that no other plant the same strain, same soil, same water, and same conditions would show a deficiency... Any thoughts? Suggestions where to start? The seeds where popped on 4 removed link Water only at the moment due to having plenty of available nutes in the soil. 

 

For the micro, it's my first attempt at a micro and I'm treating it exactly the same as a full grown plant. With less water. Am I doing something wrong? It looks really sad... A lot of leaves are burning up and falling off after they're a few weeks old. For some reason a few at the bottom grew in small bushy like leaves that seem to still be alive. I gave it a bit of top dress compost wich thinking back probably wasn't the best place to start.

 

Any help is much appreciated!! Thanks everyone!

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ShredMonkey
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Macky
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@shredmonkey Looks like the onset of potassium def maybe mate..... have you added any or are you still only using water?

 

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ShredMonkey
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@macky only water so far, just got to the garden center and gonna pick up some potassium booster, thanks!

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