Finally started a little experiment I had been talking about with
@hesgone13
Recently I wrote Greenleaf nutrients to ask how to make sure I am getting consistent nutrient solution when I am measuring such small amounts by weight (2g or less) when I make a batch.
They suggested dissolving 100 grams in 1 L of distilled water. Thus 10ml of solution = 1g of dry nutes. Sounded like a good plan, so I made a batch tonight. Mainly to see if the chemistry changes over time, indicating that some of the components are reacting with each other and/or are breaking down.
Didn't want to tie up one of my larger beakers, so I cut the amounts in half, and mixed 500ml of distilled water and 50 grams of the new formulation of Megacrop.
90 minutes on the stir plate and it did not fully dissolve. There is a small dusting of light colored particulate matter on the bottom of the beaker. I've transferred it to a sealed jar and will let it sit overnight to see if the rest dissolves. If it doesn't, I am not sure if it's worth pursuing this. I don't really know if whatever that powder is might be at it's saturation point in water already, or perhaps it's just insoluble impurities (sand, maybe?).