Leaf tips turning yellow

C

Chef B

Member

• Apr 26, 2012

• #1

Hi All,
This is my first grow and am in need of some advice. Currently have 7 plants started from seed on 4/2. Hydro grow, dwc and aeroponics. leaf tips turning yellow.
Using GH flora series. Temps between 70-82F,humidity 30-50%, ph at 5.9-6.0, Blackstar 600 led about 12" above plants,using ro water and current ppm of nutes 510. will try to get some pics up later today.

 

Weed Anubis

Well-Known Member

• Apr 26, 2012

• #2

well it sounds like nute burn, once u get pics will help more, also you just said all the grows that have water invovled which one is it lol or u are using all three for differant stages? if so which stages for which grows types? also humidity should be between 40-60 tho 30-50 isn't really to bad, im guessing the 30% is at night. if using hard water are u letting it sit out for 24hrs to get rid of chlorine

 

C

Chef B

Member

• Apr 26, 2012

• #3

Ooops, its dwc and i am using reverse osmosis water that i let sit for a day.

 

C

Chef B

Member

• Apr 27, 2012

• #4

Still trying to track down where i put camera, have not used in awhile. In researching issue im pretty sure it is nute burn so i emptied res and put in ro water with a little clearing agent. Will give two days then dial back nutes from the 520ppm where it was to 250ppm and see how it goes.

 

tyke1973

Well-Known Member

• Apr 27, 2012

• #5

Nute burn,or more likely wind burn if you have a fan blowing on the plants it could be something has simple has wind burn i would check this before messing around with nutes.Also i'm not sure i understand about your light scedule they should be on 18/6 nothing will be gained from 24/7 lighting scedule.The general humidity is a little high too could do with it been around 60%.......tyke

 

C

Chef B

Member

• Apr 27, 2012

• #6

Light cycle is on at 18/6. humidity tends to be between 30-50%.