Hi guys, i have posted up here recently on my grow journal and decided i should have this problem in the infirmary, maybe someone who knows there stuff can diagnose these signs, i havnt much experiance with deficiencys,
the link is: https://www.autoflower.org/f5/dutch...nafem-critical-moby-dick-600w-grow-13598.html
My medium is Plagron Light Mix,
My nutrians are Plagron Alga-grow, and alga bloom
Temps 29 oC, 600w HPS on 20/4
anyway im not too sure if its a manganese deficiency or a magnesium deficiency because the yellowing leaves started at the bottom and top not so much in the middle, it also looks to like the leave is sucking all the green out of it, the vains are green and between the vains is yellow/light green,
i fed these 1/4 mix of plagron alga-grow, on there 3nd week, and seen a small sign of burn on tips of leaves, this was after i seen the yellowing (thinking they needed some N)
I am not sure if its a lockout due to ph, i started off with bottled spring water about ph 7 it says on bottle, then descended to 6.8, now on 6.5, i give them a flush 3 days ago with 2 gal per pot of ph6.5 to flush all the stuff out, i mixed 0.5ml/5Lt of plagron alga-bloom yesterday and fed them and also folliar feed them. the plants are defintly growing, just worrying about the yellowing of them.
im pretty sure its a manganese deficiency, which i have read up to flush if it was the case, and to feed a small dose of nutes, i have done so, but not much signs of improvement. I am not too sure if its a magnesium deficiency, i have epsom salts here but im not sure if its this deficiency, its just hard to tell which is which they look the same to me
below are some pics, if anyone needs more, il post them up
any suggestions would be greatly appreciated
View attachment 152125View attachment 152120View attachment 152123View attachment 152128View attachment 152122View attachment 152130View attachment 152124View attachment 152129View attachment 152126View attachment 152121View attachment 152132View attachment 152131View attachment 152127
the link is: https://www.autoflower.org/f5/dutch...nafem-critical-moby-dick-600w-grow-13598.html
My medium is Plagron Light Mix,
My nutrians are Plagron Alga-grow, and alga bloom
Temps 29 oC, 600w HPS on 20/4
anyway im not too sure if its a manganese deficiency or a magnesium deficiency because the yellowing leaves started at the bottom and top not so much in the middle, it also looks to like the leave is sucking all the green out of it, the vains are green and between the vains is yellow/light green,
i fed these 1/4 mix of plagron alga-grow, on there 3nd week, and seen a small sign of burn on tips of leaves, this was after i seen the yellowing (thinking they needed some N)
I am not sure if its a lockout due to ph, i started off with bottled spring water about ph 7 it says on bottle, then descended to 6.8, now on 6.5, i give them a flush 3 days ago with 2 gal per pot of ph6.5 to flush all the stuff out, i mixed 0.5ml/5Lt of plagron alga-bloom yesterday and fed them and also folliar feed them. the plants are defintly growing, just worrying about the yellowing of them.
im pretty sure its a manganese deficiency, which i have read up to flush if it was the case, and to feed a small dose of nutes, i have done so, but not much signs of improvement. I am not too sure if its a magnesium deficiency, i have epsom salts here but im not sure if its this deficiency, its just hard to tell which is which they look the same to me
below are some pics, if anyone needs more, il post them up
any suggestions would be greatly appreciated
View attachment 152125View attachment 152120View attachment 152123View attachment 152128View attachment 152122View attachment 152130View attachment 152124View attachment 152129View attachment 152126View attachment 152121View attachment 152132View attachment 152131View attachment 152127
and also keep ur ph between 5.8 and 6.2 hope every thing goes well for you and ur 
