I didn’t know this, I actually “pre package” my dry nutes by weight and seal them. I’ve been sealing the Epson and part B together and mixing them together. I thought part A and B was the only no-no there.
Definitely something to look at, thank you.
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Forgive me if you mentioned already but is your system recirculating?
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The reason I mix the silica in the water first is for that reason, the first and last time I added it without the water, and it wasn’t first, it definitely gelled and didn’t mix in. I can add the silica first, makes total sense and it’s a super easy change.
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Yes the reason why part A can be mixed with Epsom is that it already contains all your micros. Part A is 5-12-26, and for your magnesium actually already has magnesium sulfate in it. But cannabis (especially under LED from what I’ve heard) are very magnesium hungry plants, which is why epsom salt is the part “C”.
part B at 15-0-0 is just calcium nitrate, so your calcium and nitrogen.
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When they are little I use a pump and “ water ring” to circulate and kind of waterfall the hydroton/roots which circulates the water. Once a good bit of roots are there and in the water I turn it off. During flower, it does not recirculate. I do however have (2) 3” circle air stones in each container with a 1100GPH pump which moves the water around quite a bit.
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So you are DWC or RDWC?
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You are correct, B and Epsom can be mixed at same time.
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This was me and your conclusion is logical. The problem with it is determining what happened first. In my opinion the ph being out of range could have and probably was the reason plant isn’t taking nutrients in the first place. Thus causing the concentration of nutrients to increase simply because they aren’t moving through plant with the water and when there is less water but same amount of nutrients it’s only reasonable that you will measure more. But we’re not watching it in real time, so either situation is possible.
Vpd being out of range will change nutrient demands of plant some, but I don’t think you’re far enough out of range to cause issues. Maybe if combined with other issues, but this is more of a best practice than something that’s going to make or break your grow.
Leave silica out when you do this and mix in the following order. Part A >Epsom>part B, making sure each is fully dissolved before moving to next step.
Nothing wrong with this. Just keep in mind everything on the report isn’t necessarily plant available.
This should read Part A and Epsom. The part B is calcium nitrate and is the precursor for causing solution to precipitate.
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Absolutely correct, my dyslexia kicked in, my apologies!
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Guys, this should have said part A and Epsom can be mixed together at same time, if you mix part B with Epsom without B being completely dissolved first, your nutes will look like a snow globe! My apologies, wasn’t using my noggin.
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Haha, at least you have a reason for mixing it up. It’s part A and Epson I mix together, B is by itself. I have no reason for why I mixed it up myself, other than maybe I wasn’t grounded enough. My bad.
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Ah, see I didn’t consider that at all, brilliant.
Now, I wonder if there is a device I can use to monitor the PH and TDS real time and record that data. Some time ago I saw one when I was browsing around, but I couldn’t ever find that thread again.
Something like that though would be perfect for the job, do you know what that’s called?
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I did read you can have to much air also havent seen that mentioned just putting it out there just thinking out loud and trying to learn if not than my bad 
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Bluelab guardian?
Imo this would be more ideal for use in a recirculating or flood and drain application where you’re using a single point to monitor all plants.
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Right, it’s something to consider for sure. Let’s say you want to manually check to see if it’s PPM or PH, how would you do that?
Maybe once a day I can check the PH and TDS and record that. With that, I can see if it’s gradual or sudden etc and go from there.
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Not following your question. You can manually check with standard testers. The guardian unit is more of a constant monitor. Lot of money to buy multiples but if you were running a recirculating system it’s all combined so a single measuring point would monitor the entire system.
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This is the order that I use. A-E-B with silica mixed first in the rez. All added separately. I was getting confused with the different orders being talked about but this is the order I’ve used for a couple years now and so far so good.
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Sorry, I just meant at what intervals would you check the PH TDS manually to catch the issue. I figure daily should work.
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Oh, haha! I would check it daily. Mostly for ph but if you’re checking that may as well check both.
Now that I’m thinking about it, maybe make your top offs straight water too. At least until the concentration drops significantly.
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Makes total sense and I will do this and record the data. After a few days or a week I’ll follow up and see what you think. I will also include temp.
Thanks for the help, I appreciate it!
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