need help identifyng nute deficiency

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gslimm

Active Member
My plants are 6" tall,i been vegging for a month1/2,i'm growing in ebb & flood,i have a 600w air cooled mh that is 24" from plants tops,i'm using botanicare pbpg & cal-mag plus,my room temps or 70-80f..rh 48-55%..res temps 65-70f..ph 55-58,i have 2 fan blowing for circluation,when lights are on,and i have the window open for a lil fresh air...I know i have a deficiency,but i can't tell which one...Before i ask for help,i try to fix the problem myself first,because i've grow once before in ebb & flood with 30 plants,with good results,but this time,i need some advice,on how to fix this...Sorry for the long post,and thank's in advance.
 

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gslimm

Active Member
gslimm said:
My plants are 6" tall,i been vegging for a month1/2,i'm growing in ebb & flood,i have a 600w air cooled mh that is 24" from plants tops,i'm using botanicare pbpg & cal-mag plus,my room temps or 70-80f..rh 48-55%..res temps 65-70f..ph 55-58,i have 2 fan blowing for circluation,when lights are on,and i have the window open for a lil fresh air...I know i have a deficiency,but i can't tell which one...Before i ask for help,i try to fix the problem myself first,because i've grow once before in ebb & flood with 30 plants,with good results,but this time,i need some advice,on how to fix this...Sorry for the long post,and thank's in advance.
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The crazy thing is,at 24" from the the plants tops they look yellowish/green,but when i move the light up 4 more inches,they look nice and green,but i don't think 24" is too much light...The pic was taken with a cell phone,but they look good,and they are growing,but for a month 1/2 they should be taller right? and i'm feeding the plants at 290 ppm,becace i can't go higher then that ...anybody know what's going on.
 
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