hmm I am currently in ur situation and this thread helped me a lot.. But still a bit unsure.. According to shift at your depth you would get high with ray 2 and medium with another planted+. I am trying to grow glosso and I understand you need high light.. I currently have a planted+ with a depth of 18" another planted+ would take me to med? and a ray 2 would take me to high? just asking cause my depth is deeper.