I have the Evergrow D2120's over my 55g breeder tank and I always ran them at 30% colors 70% blue only 8 in from the water, always been debating on removing the 90 degree optics but never really touched it. I was also debating switching them for T5's but I might as well try to remove the optics and see how it goes! Ill let you know if I see faster growth then usual.
My Schedule is Blues: from 12pm-12am| Whites: 2pm-10:30pm.
My Schedule is Blues: from 12pm-12am| Whites: 2pm-10:30pm.