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i have 3 fixtures over a 6' tank. you have 2 over a 4' tank. one light for each 2' by 18" section of tank. we have the same ratio. i have mine run parallel to the tank. and do you notice much light spilling out at that height?
i have mine 9 3/4" off the water and i think the coverage is good and even, with minimal light not going into the tank.
timer 1: 10:30am 3 hr ramp up:
wht 35%, red 20%, green 20%, blue 45%, d-blue 55%, royal 55%
timer 2: 9:30pm 1:55 ramp down:
wht 5%, red 2%, green 2%, blue 10%, d-blue 15%...
i got mainly psammacora frags. i got a gold w/ green rim, a green with orange eyes and a all red, and a branching green. i only had one type before. now i think i only need one more to have every type i've ever seen. i also got some red hornets cause the price was right. and a couple small...
i found out yesterday that the "frosted" lenses used on the ai hydros can be purchased separately and used on the ai vegas. the new lenses "diffuse" the colors for better blend, and reduced spot lighting. (which i only notice on the red and greens and only at certain times) i think also that the...
i was tempted to get one of those clams from dr. mac... but they were pretty big, and really couldn't bring myself to rearrange my tank to make room for it spur of the moment last night. but they wer huge, nice, and very reasonably priced.
isn't getting feedback, opinions, and well intentioned comments the reason that you posted here? 99% of the people in the njrc community are really just interested in sharing their experience to see everyone thrive and prosper in this hobby we all love so much. accepting feedback is just part of...
got the lights, built an aluminum frame to attach them to. have them aprox. 10" off the surface of the water, suspended from the ceiling. i'm currently acclimating the tank, plan to bump them up 5% a week or so till i get to the desired brightness. i like them so far. still playing with tweaking...