"EC would not be a good way to measure magnesium because as you pointed out, that simply measures all salts in the water.
For magnesium you could use a Magnesium Colorimeter like this one.
In our larger farms, I always recommend sending out regular…"
"Broccoli is one of those plants that tends to be a bit trickier to grow in aquaponic systems. I've done it in the past, but wasn't too happy with the flowering results I got. It formed a head, but it was much smaller than what…"
"Denver-based here too. It says that they will be raising the pH using sodium hydroxide. We will have to see how that impacts the levels of sodium in the system. If it starts to build up, it could create a lockout situation for the…"