Deficiency in the plant need help

Hello guys this is my first grow I am growing in coco and feeding half the recommended dose it is day 27. I suspect it is magnesium deficiency can anyone help me it would be much appreciated what do you guys think is the problem and what can I do to fix it I am very worried and scared I was due to transplant into 5 gallon pots in the coming days


I am feeding cal mag and canna A+B

Phosphorus deficiency. Why are you feeding half strength at this point in coco?

Do you feed daily to run off?
Most of them look like they need to be transplanted.

Remove all the damaged leaves, back off with the light and give it a full feed for its age/size. A lil Epsom salt also might green her up.

hotrodharley said:

Phosphorus deficiency. Why are you feeding half strength at this point in coco?

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Feeding at half strength because I Thought it is better to ease the plants into the feed i didn't want to shock it

MickFoster said:

Do you feed daily to run off?
Most of them look like they need to be transplanted.

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feeding half a plastic cup every two days currently

Grow Monster said:

Remove all the damaged leaves, back off with the light and give it a full feed for its age/size. A lil Epsom salt also might green her up.

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should I add epsom salt to the soil directly or mix with water and then feed the plants

Luckyfooty02 said:

feeding half a plastic cup every two days currently

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Plants that size in those size cups should be fed at least once a day to run off.
I suspect possible salt build up.