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**Hoppy** · 07-20-2011, 04:56 PM

I think I would use 40 degree optics, to get more PAR at the substrate, to reduce the light striking the glass, and to enhance the "shimmer" effect, if you want that. And, I would put the light a foot above the tank, because it looks good there, and it gives you good access to the tank for maintenance.

07-20-2011, 04:56 PM	#15
Hoppy Planted Tank Guru (View User Tanks) PTrader: (54/100%) Join Date: Dec 2005 Location: Sacramento, CA Posts: 17,218	I think I would use 40 degree optics, to get more PAR at the substrate, to reduce the light striking the glass, and to enhance the "shimmer" effect, if you want that. And, I would put the light a foot above the tank, because it looks good there, and it gives you good access to the tank for maintenance. __________________ Hoppy