Medman's point seems to have been lost in the shuffle. Ph a little higher will make the cal mag "available". The amount in the mix is not a factor if its not fully available. Also it's hard for me to overlook anything that the squirrel from the desert has to say. The guy is smarter than anyone has any business being. I don't mean to thread-jack but but DS always makes me feel like I'm chasing my tail with my mountain of jugs of potions and witchcraft.
All the best!

Are you getting much ph swing or drift? Last rd, my only "uc" experience thus far, my plant health improved largely from having a good drift. I would top off food and drive my ph down to 5.4, couple days later it naturally rises to 6.3 as they feed..

mag is readily available above 5.8
calc is readily available below 5.8.....
If you look at the chart you will see the same with basic elements and thats why no single ph has been proven to give best results. This isnt the be all rule, some claim 5.8 is the "BEST" but with rapid growth in the "uc" you have the swing to use in your favor. A little higher ph in veg is better in the "uc" like you already noticed. More feed is a option instead of more cal mag because most nute makers add enough.

Are you using r.o/de-i? My de-i was a bummer for my setup...I went away from it and it was another lg plant improver for me.

Sorry everyone I have been down for awhile with a ankle injury. Anyways the ladies are in the beginning of week 5 had a couple of height issues on some of them but no complaints here...
I will post pics as soon as I'm able to walk more freely. Thanks to everyone who has been helping out and stopping in to see what's going on.

What's up with starting a thread and letting it die? Did this run kick ass?