leaves curling on the top of my chem dogs

the tops of my 2 chemdog plants all the leaves are curling up like a taco

What kind of light and how close?

zack66 said:

What kind of light and how close?

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600 w mh in a cool tube with a 6 in inline fan like a foot and a half from the tops

That all sounds right. Arer your temps in check? So either a nute or ph problem. What are you growing in? Ph? And what nutes and how much and often? Oh yeah, any bugs? They don't look too bad. Hopefully a minor issue.

yea im growing them in soil i havent had any bugs with them just mildew once and its starting to look like it may be coming back again, but im useing botanigarden nutrients and flushing every other water

how much airflow over the canopy?

Your plants are fine.

mag deficiency can cause that appearance, along with necrosis. doesn't look like it here.

it is recommended you feed every third watering, so as not to have to much salt build up in the soil.

Ph swings probly