Whenever i got weird Def's it was because i was feeding to low .
Yep. I don't go any lower than an EC of 1.0 during early vegging for light feeders and find that 1.2 works better for most of my plants. I don't know why underfeeding with V+B manifests itself as a bunch of weird deficiencies, but it sure as hell does.
I'm a hydro newbie but I use floranova (http://generalhydroponics.com/site/index.php/products/nutrients/nova_series/)
theres no ph fluxation in floranova veg and bloom because theres some sort of ph buffer in it, and I personally don't changed the rez water. I've been using the same water for about 3 weeks. I don't even measure anymore, I just crack open my dwc rez and pour in a generous amount.
attached are my plants, those are 18 papaya clones (the ones in the back have another week or two to root)
Yep ran it for a while myself. I had good results with it but man it was a pain in the ass, and had the reses so filthy. I had to use calimagic with it too.Tried Floranova years ago. It is was decent but about the messiest stuff to play with and stains everything.
Give them a call, the guy is very informative. Called me back same day.