Leaves are showing signs of profound unhappiness

So I just got this leaf discoloration going on on one of my lovely ladies. I am growing in a rdwc using canna aqua at half strength. Light is 4oo hps in a ventilated room. By ventilated I mean exhaust fan at 320m3/h and 2 intake holes by negative pressure or smth.
I ve been away overnight and came back to this.
Please, any help ?

That looks like typical calcium deficiency to me.

TreeFarmerCharlie said:

That looks like typical calcium deficiency to me.

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Thank you Sir.
The water in the tank has been at ph 5.6 for the past couple of days.
I normally let it go up by itself and only when it is getting out of hand I bring it down a notch. But usually when I give the nutrients it goes down again.
What should I do now?
Order some Cal-Mag?
Adjust the PH (growweedeasy is saying that the best absorption rate for Calcium is above 6.2 in hydro)
Add more nutrients to the tank?
EC is currently at 0,7 and I am well into the 5th week now with NL autos.
I did a reservoir change last week. Prior to that EC was 1.4 but that was after several feeds and no reservoi changes. But too little surprise I was getting issues.
And here I am now getting more issues.
Man, I just wish I could buy this for a decent price and juat enjoy it in peace. But no. I have to care about this plants more than I care about what’s for dinner tonight
Anyway. At least we have this awesome platform to get some relief.
Thank you

I came here for the title. Very poetic

2nd cal deficiency

UsulTheGrower said:

Thank you Sir.
The water in the tank has been at ph 5.6 for the past couple of days.
I normally let it go up by itself and only when it is getting out of hand I bring it down a notch. But usually when I give the nutrients it goes down again.
What should I do now?
Order some Cal-Mag?
Adjust the PH (growweedeasy is saying that the best absorption rate for Calcium is above 6.2 in hydro)
Add more nutrients to the tank?
EC is currently at 0,7 and I am well into the 5th week now with NL autos.
I did a reservoir change last week. Prior to that EC was 1.4 but that was after several feeds and no reservoi changes. But too little surprise I was getting issues.
And here I am now getting more issues.
Man, I just wish I could buy this for a decent price and juat enjoy it in peace. But no. I have to care about this plants more than I care about what’s for dinner tonight
Anyway. At least we have this awesome platform to get some relief.
Thank you

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I don't grow in hydro, so I wouldn't be the best to answer this question, but for a soil grow I would test the soil to make sure it wasn't being caused by lockout and then I would either correct the issue in the soil or start dosing some CalMag.

k0rps said:

I came here for the title. Very poetic

2nd cal deficiency

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Yeaah. One must get poetic. The usual “Help ! I am turning this into hay! “ doesn’t seem to get no ones attention anymore
Calcium then. I hear cheese is rich in calcium

Quick follow up.
I have ordered a CaMg nutrient. It will get here in a couple of days.
I will raise the Ph a bit in the meantime.

I don’t know much but I know ph issues can manifest itself in the form of other deficiencies like manganese etc.

Macncheesehaze said:

I don’t know much but I know ph issues can manifest itself in the form of other deficiencies like manganese etc.

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It’s deficient partly because you went from a higher EC to a far lower. Pics are from under HPS. Hard to tell exactly what happened.

hotrodharley said:

It’s deficient partly because you went from a higher EC to a far lower. Pics are from under HPS. Hard to tell exactly what happened.

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Much Appreciated.
I am going to raise the EC a bit.
In the next couple days I am going to have the Z7 and the CaMg supplements arrive.
They’d better start yielding after that. Or else !