billjonston
New Member
Hi,
I a bit of a newbee, got some clones about about a week and a half ago they have grown pretty well in that time(we can't ,well its hard to get seeds here). However, the edges of the leaves on both my plants have started to curl up (see pics below) and some leaves are a bit yellow. From what I can gather from other posts & the growers guide (which by the way is super helpful) it seems like it could be a Magnesium defiency which could be the case cause I did have the PH a litle high to start with like 6.3, I have since lowered to 5.8/5.9 to prevent lockout of Magnesium, also I dont think my nutreint contains magnesium (its called "A&B Organic" Hydroponic grade organic plant food, theres bottle A and Bottle B) I was told to put in a bit less than the bottle says which is 5ml per 1L for both A & B (i have 50 litres in the resivour so 50 x 5 = 250) i have been puting in 200ml for each bottle(both bottles seem to only contain N, P, K no Magnesium). Also my growroom is a bit hot at the moment as the extractor fan is not vented to outside yet, just gota get some ducting to fix this. I have a deskfan and extracctor fan venting to the other half of the room my growrooms in, the temp in the grow room is about 25-28 deg but this is pretty good compared to the temps outside in the sun which are 30 -35degC. what are the symtoms of heat stress? But then I saw the photo in the "Cannibis problem solver - pictorial" the one regarding underwatering, what I got sort looks like this but mines way not as bad (just the edges of the leaves curling up). I have attached a few pictures, just wana know if this could be mg defiency or heat stress? Can anyone also recommed a nutreint solution that contains all the required nutreients.
Any comments would be much appreciated. Cheers
Details are as follows:
Light (600w HPS)
Drip system 4L per hr x 2 on each plant.
PH 5.9 (was 6.3)
EC 2.0 (around 1.9 - 2.1)
Nutrient solution: A & B Organic
Growing Medium: Expanded Clay
Temp: (approx 28 deg in the grow room). Its bloody hot here in summer (30-35degC for the last few months nearly everyday outside, record breaking temperatures).
Pitures Below:
I a bit of a newbee, got some clones about about a week and a half ago they have grown pretty well in that time(we can't ,well its hard to get seeds here). However, the edges of the leaves on both my plants have started to curl up (see pics below) and some leaves are a bit yellow. From what I can gather from other posts & the growers guide (which by the way is super helpful) it seems like it could be a Magnesium defiency which could be the case cause I did have the PH a litle high to start with like 6.3, I have since lowered to 5.8/5.9 to prevent lockout of Magnesium, also I dont think my nutreint contains magnesium (its called "A&B Organic" Hydroponic grade organic plant food, theres bottle A and Bottle B) I was told to put in a bit less than the bottle says which is 5ml per 1L for both A & B (i have 50 litres in the resivour so 50 x 5 = 250) i have been puting in 200ml for each bottle(both bottles seem to only contain N, P, K no Magnesium). Also my growroom is a bit hot at the moment as the extractor fan is not vented to outside yet, just gota get some ducting to fix this. I have a deskfan and extracctor fan venting to the other half of the room my growrooms in, the temp in the grow room is about 25-28 deg but this is pretty good compared to the temps outside in the sun which are 30 -35degC. what are the symtoms of heat stress? But then I saw the photo in the "Cannibis problem solver - pictorial" the one regarding underwatering, what I got sort looks like this but mines way not as bad (just the edges of the leaves curling up). I have attached a few pictures, just wana know if this could be mg defiency or heat stress? Can anyone also recommed a nutreint solution that contains all the required nutreients.
Any comments would be much appreciated. Cheers
Details are as follows:
Light (600w HPS)
Drip system 4L per hr x 2 on each plant.
PH 5.9 (was 6.3)
EC 2.0 (around 1.9 - 2.1)
Nutrient solution: A & B Organic
Growing Medium: Expanded Clay
Temp: (approx 28 deg in the grow room). Its bloody hot here in summer (30-35degC for the last few months nearly everyday outside, record breaking temperatures).
Pitures Below: