Is it nute burn or deficiency?

[Just done]

Hello . So I am using calm mag , A and B and rizo. And this happened. I didn’t have cal mag every day and I grow in coco. Don’t know what to do. Need more nuts or lay it off

 

[Creature]

What's your water like?
Canna nutes? Following their recommended feed schedule?
Watering to sufficient runoff?
How often and how much calmag have you been adding?
PPM's of your water before and after adding nutes?

 

[Just done]

What's your water like?
Canna nutes? Following their recommended feed schedule?
Watering to sufficient runoff?
How often and how much calmag have you been adding?
PPM's of your water before and after adding nutes?

My water is hard, uk two water. Canna nutes. First I give cal mag just once and it started, not gave 3 more watering in a row. Yes I get run off. Don’t have pmm meter

 

[Proph]

This is a combination of things due to excess nutrients.. Most likely calcium or magnesium. You need a ppm meter to attempt to resolve or diagnose the problem.

 

[Mañ'O'Green]

This is a common error new growers make. You cannot present a single (or two) elements to the plant alone. Nutrients must always be presented to the plant in "Balance". It is important in all medias but is critical in all forms of hydroponics. Coco is hydroponics. What happens here is the Cal-Mag washes the other (in balance) nutrients away from the roots and then what is available to the plant is taken in to the point the plant will lock-out the other nutrients.

When you need more of some element you raise the amount of that element in your balanced nutrient mix but do not exceed its range in this chart:

This chart is in weight per liter - not EC.

Many growers do not understand all of this and for them I simply tell them to use a single vendors nutrient line designed for the grow media. Use the entire line ONLY and follow the vendors chart.

To recover from this Feed balanced nutrients off the vendors chart ~50% strength to 15% run-off by the end of every day. If you are not using a nutrient line designed specifically for coco (you should be) add 50 PPM of calcium to your balanced mix but make sure you are not going over 140PPM by weight in your mix.

 

[Just done]

Gave it cal mag for few days in a row. Looks better.