I am a big fan of t5 lighting because of how well it has worked on my previous SW
tanks. I was able to house and even grow acroporas with it.
I am also using primarily t5 on my planted tank now and soley HO
t5 on my african tank, even though I am not growing plants in it (yet).
I am thinking about 2 of these fixtures over a 120 gal
that is 3.6 wpg
traditional, not taking into account T5 ability to penetrate depth.
Is that going to be too much? Too little?