Lighting LED and CalMag discussion.

[iampepe]

I'm seeing a bit of magnesium deficiency on my first grow using an Amare SE450. It has 6 cree 3070's and 60 monochrome led's I had been just adding 3ml about every 3rd watering using my blurple led's with no problems. Vic from Amare says the plants use more cal/mag due to the increased photosynthesis from the high intensity and better light spectrum. So I'm adding it every watering now till the new growth looks fine.
SolarEclipse450UVB: Par
- 1207umol@24", 770umol@36", 546umol@48" (No lenses)
- 2118umol@24", 1523umol@36", 974umol@48" (With lenses)

 

[pop22]

the veins don't usually turn yellow first with cal/mag issues. I suspect ph issue/s

 

[Yeatster]

the veins don't usually turn yellow first with cal/mag issues. I suspect ph issue/s

Thanks @pop22 I use Advanced Nutrients (pH perfect) with the exception of General Organics Cal/mag. Would you recommend a flush? I would rather not but if need be I will.
Thanks for your input, much appreciated.
Btw, what happened to the journal with your wife? I haven't gotten a notification for it in some time.

Peace

I'm seeing a bit of magnesium deficiency on my first grow using an Amare SE450. It has 6 cree 3070's and 60 monochrome led's I had been just adding 3ml about every 3rd watering using my blurple led's with no problems. Vic from Amare says the plants use more cal/mag due to the increased photosynthesis from the high intensity and better light spectrum. So I'm adding it every watering now till the new growth looks fine.
SolarEclipse450UVB: Par
- 1207umol@24", 770umol@36", 546umol@48" (No lenses)
- 2118umol@24", 1523umol@36", 974umol@48" (With lenses)
View attachment 619877

Thank you @iampepe that is helpful. I am using a PC CX300 and it it also pretty intense.
To what ratio is your 3ml feed, in liters or gallons?

Hello, i cant answer your 2 questions but i would like to know myself.good questions.
I grow hydro and my calmag is 1tsp. Per gallon recommended.
I have gone so far as 10 tsp. In a 7 gallon tub.
hope that helps alittle anyway

Very helpful. Hopefully we can figure it out together. If I happen to get it straight, I'll be sure to post my conclusion and how I got there for ya.
Thanks!

 

[iampepe]

Thanks @pop22 I use Advanced Nutrients (pH perfect) with the exception of General Organics Cal/mag. Would you recommend a flush? I would rather not but if need be I will.
Thanks for your input, much appreciated.
Btw, what happened to the journal with your wife? I haven't gotten a notification for it in some time.

Peace


Thank you @iampepe that is helpful. I am using a PC CX300 and it it also pretty intense.
To what ratio is your 3ml feed, in liters or gallons?

Very helpful. Hopefully we can figure it out together. If I happen to get it straight, I'll be sure to post my conclusion and how I got there for ya.
Thanks!

Sorry, that would be per gallon

 

[BII]

I have a couple questions that I can't find the answers to. Before I read this whole thread, I wanted to put them out there first, in case someone can shed some light and help me out.

1) has anyone noticed a difference in cob, white light, reducing, or increasing the need for cal/mag?

2) what is considered too much cal/mag?

I started with a calcium deficiency in my HBBSS very early, before day 20 I believe. I have upped my doses from 1ml/L to 1.5ml/L and so on, until now, day 31. I gave her 3 ml/L yesterday.
The rusty lower fans have subsided but the middle growth appeared to be indicating mag def. about a week ago. At that point I was giving 2.5ml/L. As stated, I am up to 3ml/L as of yesterday. She has consumed her 2 liter feed in 24 hrs and looks great, aside from, what appears to be, this mag def creeping up to newer growth.
I have yet to read anyone dosing cal/mag this heavy. I have what is considered soft water, according to town records. But even growers with RO have not needed this much!

I am sceptical upping cal/mag at this point and need to try to wrap my head around this. I hope this is a good place for inquiries.

Peace

Why not do foliar feeding with cal-mag (presuming this is before bud formation)? Foliar feeding is more immediate working, and doesn't require messing with the soil/media at all (no concerns about pH, high Ca/Mg causing lockout, etc.). And presuming you don't go crazy, there are no concerns about overdosing.

During veg period, after about 2 weeks, I often foliar feed/spray the plants every other day to make sure they get cal-mag and Azatrol, Neem or other organic-type pesticide. Plus, if like me, you are using AN pH Perfect base nutes, it's best to not mix in the high salt/ionic additives, e.g., Ca, Mg, Si; rather administer those by foliar feeding. And if you are using a reservoir, you can foliar feed the plants with organic-type nutrients that would mess up the reservoir/tubing/connectors.

 

[Yeatster]

Why not do foliar feeding with cal-mag (presuming this is before bud formation)? Foliar feeding is more immediate working, and doesn't require messing with the soil/media at all (no concerns about pH, high Ca/Mg causing lockout, etc.). And presuming you don't go crazy, there are no concerns about overdosing.

During veg period, after about 2 weeks, I often foliar feed/spray the plants every other day to make sure they get cal-mag and Azatrol, Neem or other organic-type pesticide. Plus, if like me, you are using AN pH Perfect base nutes, it's best to not mix in the high salt/ionic additives, e.g., Ca, Mg, Si; rather administer those by foliar feeding. And if you are using a reservoir, you can foliar feed the plants with organic-type nutrients that would mess up the reservoir/tubing/connectors.

Thanks for replying Bill. I have considered foliar feeding. I am just trying to be sure this is, in fact what I need. As pop22 stated, it could very well be pH issues. As far as foliar feeding all the time, it just won't happen. I would have to keep her out of the tent, pull a fan out to help dry, and wait until she is dry to put her back, to avoid burning. At that point, I may as well cut her light cycle down.
I understand other additives will mirk up the pH in the "perfect" line but AN cal/mag has too much N and I have been advised to go with General Organics line of Cal/Mag. I do check pH every feed. If it is way high or way low, I adjust; if it's between 6.2- 6.5 I let it go.

Going crazy on dosing is my concern now. I am feeding 3ml/L. Seems awfully high to still be seeing problems. I am suspecting other causes now, but just not sure.

 

[chxrxs]

guys, if u want ur plants to uptake calcium and other minerals better (like thousand times better) use biostimulants like L-amino acids, they are intermediate chelators making minerals available for the plants. it works no matter what lights u have!
to educate urself on the topic watch videos by Harley Smith ("NPK University") on YouTube.

 

[xotorazeko]

Which AA would you give though?

 

[pop22]

i thinking flushing does more harm than good. If your keeping your ph in, what medium are you growing in? Hydro, including coco, you want 5.7-6.3 soil 6.5 -7.0

Thanks for replying Bill. I have considered foliar feeding. I am just trying to be sure this is, in fact what I need. As pop22 stated, it could very well be pH issues. As far as foliar feeding all the time, it just won't happen. I would have to keep her out of the tent, pull a fan out to help dry, and wait until she is dry to put her back, to avoid burning. At that point, I may as well cut her light cycle down.
I understand other additives will mirk up the pH in the "perfect" line but AN cal/mag has too much N and I have been advised to go with General Organics line of Cal/Mag. I do check pH every feed. If it is way high or way low, I adjust; if it's between 6.2- 6.5 I let it go.

Going crazy on dosing is my concern now. I am feeding 3ml/L. Seems awfully high to still be seeing problems. I am suspecting other causes now, but just not sure.