House & Garden Nutrients (Aqua Flakes) review?

What do you guys think of this base nutrients? Heard goods things of it

http://www.house-garden.us/products/bases/aqua-flakes-2/

I'm using aqua flakes a n b only. I need a tad nitrogen supp....but haven't gotten. just HnG a and b. set it and forget it. I set ph one time at six.I have had this guy in veg for a month in perlite and 7 to 9 weeks in dwc. I am now up to 10ml a gallon. Bit purple but it's now going away. Do you guys think I need to worry about leaf veins. Looks like N or mg/cal...I don't want to hurt it so I let it be. Any help first time

The purple isn't always nute deficiency. It is sometimes due to low temps, or in my case, strain. Skunkberry has purple veins start to finish.