Any ideas anyone

Fast dog

Fast dog

Well-Known Member
600w hps in light mix soil 5gal pots nearly 4 weeks old temps around 27-28 degrees plenty of exhaust feeding with plagron nutes fed twice fairly lightly the others are fine it's only this one what has a problem my ph is around 6.7 it's a HSO blue dream thanks.
 
bokedoki

bokedoki

Active Member
looks like you have a low nitrogen condition in your soil mix, if all of the other plants are fine just add some extra N when feeding and it should be fine.
 
Fast dog

Fast dog

Well-Known Member
I shall add a bit of cal mag today to see if it sorts it self out if not I'll add some N next watering
 
Fast dog

Fast dog

Well-Known Member
I've watered with cal mag it doesn't seem to be stopping it's slightly spreading to the leaves above I don't think it's a n def I have a little bit of claw so don't think it's that my ph pen is fairly new so I don't think my oh pen is of what else could it be anyone
 
Olive Drab Green

Olive Drab Green

Well-Known Member
P or Mg def, most likely the latter. Clawing is N-toxic. Make sure your pH isn't off just to rule out lockout. Also, water droplets on leaves under bright light leaves spots sometimes, so be aware of that.
 
Fast dog

Fast dog

Well-Known Member
They are 4 weeks old added a dose at 1/4 strength 3rd week and the same 4th week I added a cal mag watering the other day and have added no nutes since I'm thinking now maybe just flush it all out and start again and I maybe need to calibrate my oh pen somehow to test its accuracy but my ph has always been 6.7-6.8
 
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