Might want to wait till a hydro guy offers assistance, as my opinions are just that...opinions. I'm a soil grower, but I tried unsuccessfully to use the Flora Nova series a couple of years back. (I got it from a 50% off sale) Had problems with keeping ph in line, and all that potassium in the nutrients wasn't helping. (most sources of potassium raises ph) Went back to Fox Farms after one grow cycle, and used the Flora Nova on my houseplants. I guess if forced, I could have figured-out the perfect dilution rates and ammendments to pull it off, but I'm used to FF, so learned my lesson, and went back to what I liked.

But just looking at the plants and your situation it looks to this inexperienced hydro guy like ph issues, and possible nutrient lockout beginning. (weirding-out new growth, yellowing of leaves, starting to get the 'claw') Running hydro, it's a really good idea to get a quality ph pen and some calibration solution. At least till you get to know your water, nutrients and plants. Might be from a watering schedule problem, but not sure.

Do you ph the water before adding nutrients, or after? The color-coded test results are skewed by any tinting of the water, so your ph number might be off a bit...and isn't 6.0 ph a tad high for a hydro set-up anyway?

Unless you are using reverse osmosis water, it's a tad early for needing calcium. When the time comes, you might want to consider using molasses (unsulphered) instead of the CalMag. Molasses has calcium, magnesium, iron, carbs and a host of micronutrients. IMHO, a far better choice than the CalMag.

Anyway...don't make any drastic changes till you get a solid answer from a hydro guru.