FishyFishy!'s 155 bowfront fishroom/closet build

[sphelps]

Layout 2 looks pretty good. The optics aren't required, 120 degree spread is probably what you'll get without which is probably perfect for supplemental. 60 degree is pretty tight so unless you line up your LEDs evenly over the tank and you have enough of them you'll notice more of a spotlight effect. 90 degree optics are ideal IMO but for supplemental, I wouldn't bother.