@oldsmokey TPS is the brand name, they are on the Zon. @multiVortex uses both too and is actually going to run their complete grow line coming up, I think.
I currently use, and have been, the organic calmag (no nitrogen) and silica. Great stuff. Love it. Price is quite fair, even.
I will be doing a run with their component series in the coming weeks as I fire my rdwc back up. Just been waiting on temps to chill out before firing the water up.
Hope to be seeded in the 4x4/50gal rdwc, and the 3x3/20gal rdwc before the months up.