LOL I was thinking about a SSB for esthetic reasons, now after the zoo bottom idea I'm thinking about BB for esthetic reasons. How about a fiberglass reinforced agracrete bottom moulded in a few pieces. I could be textured to look like rock (not sand), and sloped from say 3" in the back to near 0 in the front. I should still get the nutrient processing abilities of a sandbed, and the flow of a BB tank. The weight of the agracrete should be able to be included in the total weight of my live rock, thus reducing the cost of set up. My rock structures could also be attached with rods to the base for stability.
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