yellow leaves

[terapy22]

I have a problem if someone can help me or advise me what to do. The upper leaves are yellow. thanks in advance for help!

[Chefbjy]

Well looks like a light issue from pic. But could use more info. Soil or hydro? What nutes are you using? What is your pH going in and coming out? What kind of light how close is it?

[terapy22]

Plants growing in coconut from food use canu. The lights are dimluke 1200w but they work at 1000w and are 80cm away from the plant. ph input is 6.0, and the output is 6.2 -6.3

[terapy22]

I use canu from food. but for two weeks I did not give food because I had it in a coconut that was not well washed.

[terapy22]

so I wonder if it could have been one of the causes of planting plants or something completely different.

[Chefbjy]

Not sure what food canu is. Could be deficiency it you're not giving it food/ nutes. Do you know the npk? Straight Coco? Coco holds water well but not oxygen need some perlite in there so roots can breathe. pH is okay 5.8-6.5 in Coco. Are they droopy maybe overwatering roots. But not feeding in Coco for 2 weeks probably a deficiency. Give it some nutes.

[terapy22]

Hvala puno na pomoci ipak mi je svetlo bilo upitanju. Prejako mi je svetlo bilo. Hvsla puno na pomoci