@DougDawson There’s nothing actually “wrong” with the fertilizer. You can just take it (it’s the TAP formula, right?) and make a stock solution with it. Don’t throw it out or something though. You can just mix it to E.C., instead of weight.
This isn’t an issue with a particular brand, it’s the fertilizer salts themselves. You will hear or find the same things mentioned over in the megacrop thread as well, and it’ll happen with any fertilizer blends that have the particular salts responsible.
The first thing I did before buying pounds of dry fertilizer was go looking for proper storage options. Seriously, I spent days and weeks deciding, looking both for something for bulk storage, and then something for storage I’ll go in and out of frequently (ie: a smaller quantity).
These different “brands” are all using the same inputs, it’s in the “derived” section on the bag.
Monopotassium phosphate, potassium sulfate, potassium nitrate, magnesium nitrate, magnesium sulfate, ammonium sulfate, calcium sulfate, calcium nitrate, etc.
Liquid fertilizer brands are using the same inputs, they’re just putting a bit of it in water.
I don’t think there’s really any getting around it. Jacks, Masterblend, Miracle Grow, General Hydro, doesn’t matter. If it’s dry, plan for a way to keep it that way. Get containers that will allow you to put a reasonable amount (dictated by your grow size) into an air/water tight container for constant use, and something for the rest or “bulk” of it.
I chose vacuum sealed bags for the bulk. And 64Oz mason jars with silicone gasketed lids for the constant use.
My basement it 30-35% rh. If I drop a tiny ball or two of calcium nitrate (yaraliva) on the scale or table while weighing it, it turns to water in seconds.
I was even asking @lefthandseeds about his storage choices in his thread, just out of curiosity, a couple months ago. Lefthand's Synthetics from Scratch - #270 by Nitt.
PS: @Jetdro Hello, I’m curious about that Jack’s 20-20-20, could you tell me exactly which product it is you’re using (link to the product), please?
Thanks.