Week 3 Bruce Banner RDWC waterfall system. GH Maxi Nutes

Week 3 Flower plants looking health.
4x4 with 600 watt HPS
I'm using RO water and maxi grow and bloom +Liquid Koolbloom and Dry Koolbloom.
When I need cal-mag I'm using Blue Planet Nutrients CalMag Pro Formula.
I like using powdered nutrients because I don't like paying for water.
Tell me what you all think.

They look good to me, nice and green.

Anytime I've used Maxi it has been a super easy grow and great buds. Looking good!