Here is my collection of salts. In the box is Iron DTPA, Zinc EDTA, Copper EDTA, Manganese EDTA, Sodium Molybdate and Boric Acid. Those 6 make the micro blend which is the absolute base part. Once mixed to my specs, it will make up 1000 gallons of reservoir, so for me, 100 ten gal resses. Outside the box is a food preservative that prevents algae from forming in the micro blend. Maybe at less of a concentrated state, but at a 1000:1, I didn't want to take the chance, so bump up my $160 estimate by the cost of this tub. I couldn't find a small qty of it, but if can, do so. It's called Sodium Benzoate, and there's a very good explanation
HERE. Also in the micro grouping is a 0.00 scale. To weigh up the required amount of molybdenum for the 1000 gal mix, less than a half gram is needed and honestly, the math requires a 3 decimal scale, but I could only afford the 2 decimal scale, so I round up. Small solo shot cups are great for weighing everything except the Iron. Manganese is pushing it if memory serves me well.
The other group is 4 lb jugs of CalNite, MagNite, MKP. There's a bag of Epsom, and a bag of Potassium Sulfate I found on Amazon for like $6. The little tub is Potassium Silicate, but my next order I'll get the 4lb tube so it lasts. These are all the macros and secondaries (technically micros) Everything on this side of the table is always mixed at the same weights for them all. 1 gram of salt weight to every 10ml of liquid volume. This makes it so you can dial in your targets on Hydro Buddy and easily resolve the liquid volume from the returned weight given by the app. So if for instance the app tells me I need 0.927grams of solution X, I just need to shift the decimal over one and realize that as 9.27ml of liquid volume. It is preferred to mix weekly res changes from a liquid base because a respirator or paper mask is not needed when working with liquids.
to mix 1 gallon of Macros, add 378.54 grams
to mix a half gallon (what I make), add 189.27 grams.
I use the 0.0 scale for this and also round up. All of this rounding up of course decreases my accuracy by that much, but I assure you, my doses are still more accurate than everyone else's as I am then only slivers away from numbers I want versus points away from numbers a brand aims to com close to.
I use the same scooper for retrieving weights. That 2 gallon bucet back there is used with that
printed liquid paddle in a drill to mix the salts into each solution and all tools are thoroughly rinsed between mixtures so not to cross contaminate. If you don't have a printer, you'll need to use a paint paddle, though I have reservations with using metals in with my nutes. When water is added, the salts will lock together and not liquefy, so thorough agitation is a must.
When mixing salts to water, it is important you first pour some of that pure water into a side cup to make room for what comes back as even though the salts are soluble, it still accounts of space in the volume of the jug. To get the most into the mix, I end up with 2 cups of salts per mixture due to the limits of my scale, but regardless, pour a little bit of water in the bucket, then all of the salts and swirl around. then with the still pure water, pour it into the cup(s) to wash out any powders and essentially clean the cup(s) before adding in the rest of the water. Agitate till all salts are dissolved, or with some, won't dissolve any more, then transfer the mixture it's respective jug. Use the side water to fill the jug the rest of the way and what you don't used was originally meant to have spilled all over the table as overflow, lol.
Here is my concentrates next to my ACT station that is currently brewing one up to be used tomorrow. I used to have 8 jugs as one had a fulvic/humic blend in concentrate that turned stinky. I also experimented with fulvic/humic/kelp blend concentrates in past months, but they all seem to turn, so I tossed the jug and will now mix that in weekly as a powder. Grow rates are just too noticeably more vigorous to stop using again, but it doesn't seem concentrated organic acids is an option either, so it will only be the 7 bottles of nutes with a 1 part powder additive.
And that's all I have to say about theyyyyyyyyy 'attttt!