help my plants are yellowing and roots are turning brown

M

my medical707

Member

• Dec 19, 2009

• #1

they are looking bad. GDP. 3.5 weeks into flowering. it just started last week after i think i burned them? not sure.. please help. also the water temp droped. roots are roting.

 

nanskies

Active Member

• Dec 19, 2009

• #2

sounds like root rot...is this a hydro grow

 

M

my medical707

Member

• Dec 19, 2009

• #3

nanskies said:

sounds like root rot...is this a hydro grow

Click to expand...

yea.rockwool qubes on slabs. drain to waist but doesent drain...it evaporates out of the tray. on a drip system 1 gph dripers

 

nanskies

Active Member

• Dec 19, 2009

• #4

have you checkd your ph levels

 

M

my medical707

Member

• Dec 19, 2009

• #5

i have a hanna meter for ecu/tds+1396 and ph+6.8. the meters are a few years old. the stock water reads=260ec/tds and 6.0ph

 

BigVape

Well-Known Member

• Dec 19, 2009

• #6

my medical707 said:

i have a hanna meter for ecu/tds+1396 and ph+6.8. the meters are a few years old. the stock water reads=260ec/tds and 6.0ph

Click to expand...

Your PH is high for Hydro, they probably aren't eating well, set your ph to around 5.8.