Anybody know what deficiency this is or it it nutrient burn?

Retailing · Jun 14, 2020

Coco
Ppm 600
Week 6 flower
Critical orange punch auto, PH 5.8 - 6.02
GHE flora micro and bloom (Lucas formula) 0.5ml micro per litre, 1.5ml bloom per litre, 1.5ml botanicare cal mag plus per litre
Humidity 55 - 65, temps 22 - 26C

need advice on what to do to correct this issue

spek9 · Jun 14, 2020

Looks like Calcium deficiency, but you also have some signs of possible nutrient burn.

getogrow · Jun 14, 2020

Gotta see the whole plant to give more info. Your giving more Ca then you are any other element. Thats not balanced enough for me.

JoeBlow5823 · Jun 14, 2020

spek9 said:
Looks like Calcium deficiency, but you also have some signs of possible nutrient burn.

Yeah looking more like a lockout type situation to me.

Retailing · Jun 14, 2020

getogrow said:
Gotta see the whole plant to give more info. Your giving more Ca then you are any other element. Thats not balanced enough for me.

Only 2 - 3 of the leaves have the rust spots, would you say lower the amount of cal mag to 1ml per litre?

spek9 · Jun 14, 2020

getogrow said:
Gotta see the whole plant to give more info. Your giving more Ca then you are any other element. Thats not balanced enough for me.

The GH Flora is concentrated. The amount OP is providing is actually below manufacturer's recommendation (IIRC, I haven't used it in going on a couple of months now).

If the ratio is off, it's not by much.

spek9 · Jun 14, 2020

Retailing said:
Only 2 - 3 of the leaves have the rust spots, would you say lower the amount of cal mag to 1ml per litre?

No. Do not lower the amount of Cal-Mag. How old are those plants? How long have you been watering with the nutrient mixture you're currently using?

Are you measuring each Litre out individually? It's best to make a bunch at once, instead of trying to measure such minuscule amounts of each nutrient bottle. At least a gallon at a time.

Retailing · Jun 14, 2020

spek9 said:
No. Do not lower the amount of Cal-Mag. How old are those plants? How long have you been watering with the nutrient mixture you're currently using?

Are you measuring each Litre out individually? It's best to make a bunch at once, instead of trying to measure such minuscule amounts of each nutrient bottle. At least a gallon at a time.

I’m mixing in 2Litre bottles, I’m feeding until I get around 20% run off and I’ve been using the same feed since they started flowering, pre flowers started popping out around the 25th of April, the stretch started on the 28th (47 days a go, so I’m at the end of week 6 flower)

getogrow · Jun 14, 2020

your at the very beginning of the issue. Its good to notice but not many can tell by looking at a few leaves.
Im usually the last to say this but it seems you have a lot of N going into the mix too. maybe skip a couple rounds of the micro and use bloom and calmag only for a couple waterings. maybe up the bloom to 2ml for those couple feedings.....

Retailing · Jun 14, 2020

getogrow said:
your at the very beginning of the issue. Its good to notice but not many can tell by looking at a few leaves.
Im usually the last to say this but it seems you have a lot of N going into the mix too. maybe skip a couple rounds of the micro and use bloom and calmag only for a couple waterings. maybe up the bloom to 2ml for those couple feedings.....

I’ll give it a go, I’ve fed them already today but I’ll start tomorrow for sure

Retailing · Jun 14, 2020

I forgot to mention that I’m also removing the stagnant water from my drip trays, only a little gets left in the bottoms of them. Is this a good thing to be doing?

WintersBones · Jun 14, 2020

Retailing said:
Coco
Ppm 600
Week 6 flower
Critical orange punch auto, PH 5.8 - 6.02
GHE flora micro and bloom (Lucas formula) 0.5ml micro per litre, 1.5ml bloom per litre, 1.5ml botanicare cal mag plus per litre
Humidity 55 - 65, temps 22 - 26C

need advice on what to do to correct this issue

Going out on an limb and going to say maybe too much N. That botanicare is 4-0-0, that might be throwing off your ratios enough. Too much N could affect the K which could affect the Cal. Anyone more learned please correct me.

spek9 · Jun 14, 2020

Retailing said:
I forgot to mention that I’m also removing the stagnant water from my drip trays, only a little gets left in the bottoms of them. Is this a good thing to be doing?

Yes, if the plants don't pretty well immediately wick the liquid back up. If it sits for extended periods, it's definitely best to remove it.

Retailing · Jun 14, 2020

WintersBones said:
Going out on an limb and going to say maybe too much N. That botanicare is 4-0-0, that might be throwing off your ratios enough. Too much N could affect the K which could affect the Cal. Anyone more learned please correct me.

My bottle says 2 - 0 - 0

spek9 · Jun 14, 2020

WintersBones said:
Going out on an limb and going to say maybe too much N. That botanicare is 4-0-0, that might be throwing off your ratios enough. Too much N could affect the K which could affect the Cal. Anyone more learned please correct me.

I don't see any signs at all that there's a Nitrogen toxicity situation.

Botanicare Cal-Mag Plus is 2-0-0. This is because the Ca source is Calcium Nitrate, and the Mg source is Magnesium Nitrate (Nitrate contains Nitrogen).

PadawanWarrior · Jun 14, 2020

WintersBones said:
Going out on an limb and going to say maybe too much N. That botanicare is 4-0-0, that might be throwing off your ratios enough. Too much N could affect the K which could affect the Cal. Anyone more learned please correct me.

Here's a cool chart.

WintersBones · Jun 14, 2020

spek9 said:
I don't see any signs at all that there's a Nitrogen toxicity situation.

Botanicare Cal-Mag Plus is 2-0-0. This is because the Ca source is Calcium Nitrate, and the Mg source is Magnesium Nitrate (Nitrate contains Nitrogen).

I thought I was seeing what maybe looked like a touch of clawing but I was thinking of a different CalMag entirely, why I though he was giving a lot of N.

Retailing said:
My bottle says 2 - 0 - 0

sorry was thinking of a different brand. my bad

getogrow · Jun 15, 2020

WintersBones said:
I thought I was seeing what maybe looked like a touch of clawing but I was thinking of a different CalMag entirely, why I though he was giving a lot of N.

sorry was thinking of a different brand. my bad

that flora micro is also 5-0-0 ..... 2-0-0 with cal mag and 0-5-4 with the bloom. I think the ratios are pretty decent but going by the plant itself , she looks a lil too green ..... looks a lil heavy on the N.
it dont look like a "problem" though.

WintersBones · Jun 15, 2020

PadawanWarrior said:
Here's a cool chart.
View attachment 4595535

Ya I'm trying to figure what I had wrong exactly. Did i have it backwards then? Low N, not high, would limit the availability of K which would then limit availability of Cal? Is that how to read the chart? Thanks for the advice.

PadawanWarrior · Jun 15, 2020

WintersBones said:
Ya I'm trying to figure what I had wrong exactly. Did i have it backwards then? Low N, not high, would limit the availability of K which would then limit availability of Cal? Is that how to read the chart? Thanks for the advice.

I think N is antagonistic to K. So high N makes K harder for the plant to access. But you could still have height levels of K that are antagonistic to Ca, which would make Ca harder to access. I don't have it fully figured out, but that's what I'm thinking.

Anybody know what deficiency this is or it it nutrient burn?

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