Phosphorus or calmag possibly?

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learningthebasics27

Active Member
Some of the leaves are starting to dry out and yellow up. I’ll post some pics. Not really happening on the dosido I’m running just the king Louis. I’m thinking they need either more bloom nutes or more cal mag. I have been giving 3ml per gallon, last feeding was 5ml per gallon cal mag. Using Botanicare cal mag w advanced nutrients. I just don’t wanna overdo it.
 

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smokebros

smokebros

Well-Known Member
Almost certain it's not calcium or magnesium related. Your inkling is more than likely right with it being a P issue. You'll need to figure out what's causing the P to lock out. Lots of times it's from an excess of iron, which can be contributed to hard water. Other times it's from excess zinc.

Solution: If you feel it's from excess buildup of other elements, flush. If it were me, I'd let it ride based on the overall healthy plants that I'm seeing.
 
L

learningthebasics27

Active Member
smokebros said:
Almost certain it's not calcium or magnesium related. Your inkling is more than likely right with it being a P issue. You'll need to figure out what's causing the P to lock out. Lots of times it's from an excess of iron, which can be contributed to hard water. Other times it's from excess zinc.

Solution: If you feel it's from excess buildup of other elements, flush. If it were me, I'd let it ride based on the overall healthy plants that I'm seeing.
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I am using advanced nutrients Sensi bloom a and b. I am mixing 300ml of each into 40 gallons of water, and adding 120ml of Botanicare cal mag. I am using other additives like bud igniter, voodoo juice, etc @ 150ml in 40 gallons. I am using ro water @ 10 ppm.

According to advanced nutrients calculator I should be giving it 600ml of each Sensi bloom a and b in 40 gallons but I already burnt them a little in the past not watering with enough runoff so didn’t wanna feed too heavy.

Also growing under hlg 550 quantum boards and got some red fan leaf stems reason I was thinking it could be cal mag too
 
JohnDee

JohnDee

Well-Known Member
LTB,
I actually feel that it's from excess nutrients. Last run...I overdid it and many of the leaves had that edge burn thing going on. Plus several of your leaves have blatant tip burn. For someone whose username is learningthebasics...you're really going overboard with some very non-basic additives.
JD
 
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L

learningthebasics27

Active Member
hotrodharley said:
You’re aware that your additives besides your nutrients increase your EC I’m sure. Bud Igniter is going to increase phosphorus. Any excess of any of the elements can cause lockout. Not saying it’s lockout. Just considering your EC that you are feeding.
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JohnDee said:
LTB,
I actually feel that it.s from excess nutrients. Last run...I overdid it and many of the leaves had that edge thing going on. Plus several of your leaves have blatant tip burn. For someone whose usernames is learningthebasics...you are really going overboard with some very non-basic additives.
JD
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I am pretty sure you both are right. I might be feeding way too much. My plants need water every other day and I have been feeding them every time. Maybe I need to feed them less everytime if it is so often or feed water in between i dont know
 
JohnDee

JohnDee

Well-Known Member
learningthebasics27 said:
Maybe I need to feed them less everytime if it is so often or feed water in between i dont know
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This is soil, right? Ya back off on the nutes. Some guys use feed water repeat while some people only feed every third watering. Be sure to allow drying between.
JD
 
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learningthebasics27

Active Member
I am letting them fully dry for sure. Sometimes I have even gone too long with water.

I am growing in Sunshine Advanced Mix 4 which is like a peat/coco/perlite
 
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