Yellowish spots on leaves

myke

myke

Well-Known Member
Ok so you haven’t been adding calmag?? If so that’s your problem. Get some. Feed 2ml/L. And .5-.7 a b nutes. Water to runoff.
 
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PeyoteGorilla

Member
myke said:
Ok so you haven’t been adding calmag?? If so that’s your problem. Get some. Feed 2ml/L. And .5-.7 a b nutes. Water to runoff.
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I haven't been adding calmag, was told a+b by dutchpro has it all (please excuse me I'm new and want to learn). So let's say I make my feed in 30l tank, a&b at 0.7, how much vitalink calmag do I add?
 
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PeyoteGorilla

Member
Ok, here come the results. Feed was 0.8 5.7
Runoff results:
Plant 1 ph 6.7 ec 2.4
Plant 2 ph 7.1 ec 1.5
Plant 3 ph 7.0 ec 1.7
Plant 4 ph 7.2 ec 1
Plant 5 ph 7.1 ec 1
Plant 6 ph 7.1 ec 1.4
Plant 7 ph 7.1 ec 1.2

You can call me names, I deserve it. Please tell me what my feed should be to get them back to normal and how often I should water them
 
xtsho

xtsho

Well-Known Member
You wouldn't need calmag if the nutrient companies didn't purposely leave it out so they can sell you another bottle of stuff. There is absolutely no reason that coco specific nutrients don't have enough in their base. I grow in coco and have never had the need for calmag because the cheap base nutrients I use contain everything the plant needs. These are not cannabis specific nutrients but formulated for hydro to grow all kinds of plants. Cannabis specific nutrients are just overpriced marketing nonsense. By slapping the word "Big" "Giant" "Power" on the label and targeting cannabis growers they can sell the same fertilizer for 5 times what they could if they just sold it as Plant Food which is what it is.

I also don't understand mixing hydroton with coco. Straight coco or coco/perlite is better. In fact I stopped adding perlite a long time ago and grow in straight coco. Plants thrive in straight coco.

I'd bump the pH up to 6 and keep it there myself. I also wouldn't let it dry out like it is in those pictures. Although unlike many I don't believe excessive amounts of runoff are needed. In fact I use Blumats and there is no runoff. So much of what's out there regarding growing in coco I don't follow and never have any issues. I don't water until runoff because the Blumats keep the coco consistently damp and I don't use calmag because I feed a nutrient that contains all of that. I have very little faith in any cannabis growing website as I don't follow their guidelines and have healthy plants from start to finish while others follow those guidelines and have issues all throughout their grow and end up checking runoff and chasing pH and nutrient issues. It's a damn plant. It doesn't require all this hocus pocus floating around on the internet.
 
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PeyoteGorilla

Member
xtsho said:
You wouldn't need calmag if the nutrient companies didn't purposely leave it out so they can sell you another bottle of stuff. There is absolutely no reason that coco specific nutrients don't have enough in their base. I grow in coco and have never had the need for calmag because the cheap base nutrients I use contain everything the plant needs. These are not cannabis specific nutrients but formulated for hydro to grow all kinds of plants. Cannabis specific nutrients are just overpriced marketing nonsense. By slapping the word "Big" "Giant" "Power" on the label and targeting cannabis growers they can sell the same fertilizer for 5 times what they could if they just sold it as Plant Food which is what it is.

I also don't understand mixing hydroton with coco. Straight coco or coco/perlite is better. In fact I stopped adding perlite a long time ago and grow in straight coco. Plants thrive in straight coco.

I'd bump the pH up to 6 and keep it there myself. I also wouldn't let it dry out like it is in those pictures. Although unlike many I don't believe excessive amounts of runoff are needed. In fact I use Blumats and there is no runoff. So much of what's out there regarding growing in coco I don't follow and never have any issues. I don't water until runoff because the Blumats keep the coco consistently damp and I don't use calmag because I feed a nutrient that contains all of that. I have very little faith in any cannabis growing website as I don't follow their guidelines and have healthy plants from start to finish while others follow those guidelines and have issues all throughout their grow and end up checking runoff and chasing pH and nutrient issues. It's a damn plant. It doesn't require all this hocus pocus floating around on the internet.
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That's interesting, seems like my problems are to do with underwatering then as I was feeding them once a week. May I ask what brands of nutrients you use?
 
xtsho

xtsho

Well-Known Member
PeyoteGorilla said:
That's interesting, seems like my problems are to do with underwatering then as I was feeding them once a week. May I ask what brands of nutrients you use?
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You don't want to let coco dry out.

I use a product similar to Jacks 5-12-26 and calcium nitrate. Using the calcium nitrate supplies all the calcium needed even when growing in coco. It's called VitaGrow and is not available for sale outside of Oregon. Although you can get the Flying Skull micro, grow, and bloom which is very similar and also an Oregon company. There is a connection between the 2 but I don't know the details.
 
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PeyoteGorilla

Member
xtsho said:
You don't want to let coco dry out.

I use a product similar to Jacks 5-12-26 and calcium nitrate. Using the calcium nitrate supplies all the calcium needed even when growing in coco. It's called VitaGrow and is not available for sale outside of Oregon. Although you can get the Flying Skull micro, grow, and bloom which is very similar and also an Oregon company. There is a connection between the 2 but I don't know the details.
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It's a shame they only do it locally, I'm sure with time and experimentation I'll find the right stuff. For now, as it's my first one, I will try to keep them alive and as healthy as I can.
 
myke

myke

Well-Known Member
PeyoteGorilla said:
Ok, here come the results. Feed was 0.8 5.7
Runoff results:
Plant 1 ph 6.7 ec 2.4
Plant 2 ph 7.1 ec 1.5
Plant 3 ph 7.0 ec 1.7
Plant 4 ph 7.2 ec 1
Plant 5 ph 7.1 ec 1
Plant 6 ph 7.1 ec 1.4
Plant 7 ph 7.1 ec 1.2

You can call me names, I deserve it. Please tell me what my feed should be to get them back to normal and how often I should water them
Click to expand...
Ok so there was a little build up of nutes or so it appears. Water more often to run off will bring the EC down. Your ph is too high witch is weird since your EC runoff is high. Hmmm. So continue with 5.6 ish and see if that improves.
your coco wasn’t buffered properly from the beginning so the added Ca mg will help. Continue feeding daily or every two days. Normally for me any way what I pour in comes out the same. I feed low .9-1.0 EC.
 
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PeyoteGorilla

Member
myke said:
Ok so there was a little build up of nutes or so it appears. Water more often to run off will bring the EC down. Your ph is too high witch is weird since your EC runoff is high. Hmmm. So continue with 5.6 ish and see if that improves.
your coco wasn’t buffered properly from the beginning so the added Ca mg will help. Continue feeding daily or every two days. Normally for me any way what I pour in comes out the same. I feed low .9-1.0 EC.
Click to expand...
I'll get the calmag asap and start using it. I'll water them daily with feed at 0.8 and 5.6 to bring them all to same runoffs and that should improve their health. Thank you very much and I'll keep you updated.
 
myke

myke

Well-Known Member
Cali magic I think it’s called. Your vita stuff will work too the 1.8 -0-0 is fine. Some of the organic stuff is 4-0-0. I think.
 
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