I gotta lose those waterfalls. HELP!

myke said:

45 ml calmag per tote?and 4 grams Mg same per tote. 45 litre tote I use to pre mix. I use two of them. So 90 litres
Thanks

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Yes 1ml per litre. And 4grams per tote

Aqua Man said:

Yes 1ml per litre. And 4grams per tote

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in his last pics @myke it doesn't look like you have any flowers yet. have you tried foliar feeding with the cal/mg?? if not, you should think about it.

rkymtnman said:

less is more when it comes to nutes. especially when they get fed daily. unless your plants are eating more than 0.5EC per day, anything more is waste.

i do dtw GH waterfarms (technically rdwc). dtw=no pH problems. fed from a standalone res.

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So you drain your DWC daily?

rkymtnman said:

in his last pics @myke it doesn't look like you have any flowers yet. have you tried foliar feeding with the cal/mg?? if not, you should think about it.

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Yes in veg I did ,it slowed it down. But i didn’t have as much control like I do now of the ph and ppm.

myke said:

So you drain your DWC daily?

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if you are familiar with a Waterfarm, if you cut the blue hose slightly above the white line, it becomes the drain. about 8 minutes of my feed pump gives me about 20% run off.

myke said:

45 ml calmag per tote?and 4 grams Mg same per tote. 45 litre tote I use to pre mix. I use two of them. So 90 litres
Thanks

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That mix other then the Mg is what I had in veg. Same result. So you think that little amount of Mg would do anything?
Now my vpd wasn’t good in my veg room. Cold and not much Rh
As you said in one of your first posts to this thread. That I shouldn’t need calmag. I’d like to try more food and no calmag first and see where that goes.
Your mix above will just result in using a ton of ph down again(I think).
Maybe 700 food and some Mg. Nothing else. Say maybe 80 ppm of Mg. My tap is 150 ppm.

myke said:

That mix other then the Mg is what I had in veg. Same result. So you think that little amount of Mg would do anything?
Now my vpd wasn’t good in my veg room. Cold and not much Rh
As you said in one of your first posts to this thread. That I shouldn’t need calmag. I’d like to try more food and no calmag first and see where that goes.
Your mix above will just result in using a ton of ph down again(I think).
Maybe 700 food and some Mg. Nothing else. Say maybe 80 ppm of Mg. My tap is 150 ppm.

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No your cal mag does not contribute to the alkalinity. Yes you can stay at half dose like you are with good VPD it should correct the issue. And thinking a bit more about it half cal mag and 8 g of mag sulfate are probably better. But get the vpd up a bit so lowering humidity even to 50% if you can't get the temps up will help. They are not babies anymore and will increase nutrient uptake and in turn calcium uptake.

Idk why I was thinking RO. Probably another forum

Getting temps up is gonna be key. You want leaf temps of 75-78 so air temps need to be higher.

Also another question I also have the same strain in coco in the same room. It’s happy as hell. No signs of these spots. It gets 1ml per L of calmag and 600 food. Nothing else. Ph 6-6.2. If it was a vpd issue would it not show on that plant also?
Thanks.

myke said:

Also another question I also have the same strain in coco in the same room. It’s happy as hell. No signs of these spots. It gets 1ml per L of calmag and 600 food. Nothing else. Ph 6-6.2. If it was a vpd issue would it not show on that plant also?
Thanks.

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Different CEC.

Also are they growing as fast? Calcium is the most important nutrient more than nitrogen but of course all are needed

Aqua Man said:

Also are they growing as fast? Calcium is the most important nutrient more than nitrogen but of course all are needed

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hmm hard to say,hydro I think since its scrogged looks to be going faster.What is CEC?
at home now leaf temp 77f 59% rhrh

myke said:

hmm hard to say,hydro I think since its scrogged looks to be going faster.What is CEC?
at home now leaf temp 77f 59% rhrh

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Perfect... CEC is cation exchange capacity. Also they are getting the same nutrient ratios each feed. In RDWC they change based on uptake so we need to dial it in

for the first time since we started this thread ppm went up
since this morning,30.ph same 5.8
edit could have been me not letting the pen stablize was in a hurry.

myke said:

for the first time since we started this thread ppm went up
since this morning,30.ph same 5.8
edit could have been me not letting the pen stablize was in a hurry.

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How are the plants looking?

Aqua Man said:

How are the plants looking?

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good, greener. tips still on new growth showing yellow.

pics coming,slow to load today

Pics first is coco bubba. Second is the other plant. It’s the one that was yellow last week. It’s tips went yellow first third pic is same plant. Greener then last week. Forth pic is bubba up close. First time I’ve seen tips burn on her.

myke said:

Pics first is coco bubba. Second is the other plant. It’s the one that was yellow last week. It’s tips went yellow first third pic is same plant. Greener then last week. Forth pic is bubba up close. First time I’ve seen tips burn on her.

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Watch the tips to see if it's follows by spotting in the same leaf the next few days after making the adjustments

I'm thinking the high K from the ph up potassium bicarbonate may be limiting the calcium and phosphorus uptake. May need to switch to calcium carbonate... But like I say let's wait and see. Can try going back to 1ml but that may then not be enough buffer.

Some purpling going on?