4x4 grow tent help

[maimunji]

Thanks al70.
One plant have serious burn on big leaves. No nutes, only tap water.

 

[al70]

That doesn't look like heat stress/burn, it looks more like a deficiency of some sort or a ph problem, hope you get it sorted, goodluck

 

[al70]

Why no nutes ? What medium ?

 

[maimunji]

Soil. Plants looks green and healthy and do not show def. exept this burn on upper main leaves. I spray plants with water before several days. Lights is on.

 

[maimunji]

Foliar spraying burn?? Light was on but i rise reflector and light turn off 15 minutes after spray.

 

[al70]

I'm not sure maimunji, I grow in coco, I think the problem is with the soil

 

[maimunji]

I think this issues is cal def and yellow tips is from this cal def. If anyone can confirm will be great.

 

[al70]

It's not cal mag def. there is something wrong in your soil, I think something is getting locked out, soil can be complicated, not as simple as some might think, like I said I don't use soil, I find coco much easier to use, try the growing in soil thread goodluck

 

[JamieShoes]

did you know that droplets of water on leaves act like little magnifying glasses?

be very careful spraying with lights on buddy, I don't foliar feed myself but I'm sure you're spossed to do it just before lights out...

 

[maimunji]

Hi jamieSHoes yes I know I spray 15 min before ligh off and rise reflector. Maybe this is not a problem i spray all plants and only one plant have this symptomps. I will wait plant dry and will choice what to do. Maybe flush I dont know for now