Ok....33 day old plants....I'm complicated by your system so won't offer any comments on it....I may understand it after a day or two.

If I had 30 day old plants here would be the approximate amount of nutrients I would be using at that point ppmwise....I use different nutes than you but numberwise I don't things should be that different. I'm talking about plants being in veg here.

RO.....10-15ppm
CalMag....350
Pro gro 350 (veg nutes) (botanicare)
Liquid Karma....100ppm
Sweet 50-75 ppm

Should come up somewhere between 800-900 with 700ppms begin CalMag and grow nutes. (I do use Superthrive sometimes but it ends up being too much nitrogen if I use it with the pro gro)

I think you are fairly deficient on a number of things just because your ppms are so low. I'm assuming you are going by the dosing listed on the back of the package? i'm just not familiar with those so couldn't say.....