[Myka]

I prefer BB in SPS systems because 100x turnover will even blow coral gravel around. I like the look of a "Starboard" bottom which is a brand name of HDPE or cutting board plastic. I had a tank all set up with the HDPE to transfer my SPS tank into, but the new tank never got water, so I don't know how that would have worked out. I know algae sticks to acrylic way worse than glass, but HDPE might be too slick to have that issue, so maybe I would have regretted it, maybe not. My BB SPS tank was about 50% coralline covered, but it never grew in all the way. It looked good where the coralline was, but aesthetically speaking, I don't like the look of the bare glass.