Cant seem to figure out this deficiency?

Im running advanced nutrients
Connoisseur grow a:4ml/gal grow b:4ml/gal and b-52:4ml gal and GH calmag:2ml/gal in ro water
At 5.8-6.2 ph 700-900 ppm. In 3 gallon fabric pots
Temp 75 humidity: low 70's
Its my bro first coco run, I do dwc
I water once every 4-5 days

Im thinking its magnesium deficiency

Looks fine. Your feed might be a little high for a plant this size. I usually feed with every watering but keep the strength down to 500-600 ppm until they get pretty big.

Richalpha said:

Im thinking its magnesium deficiency

Click to expand...

This.

I don't grow in coco but everything I read says you have to water every day.

drsaltzman said:

I don't grow in coco but everything I read says you have to water every day.

Click to expand...

Yes coco should be fed with nutrients at least once daily to significant runoff.