I made this using Real Reef Rock (Fancy Branch), 30lbs. Put together using Aquaforest Stone Fix and then covered with DD Epoxy. Boxes used to represent the internal weir.
Thanks, I got the idea from a fellow reefer on YouTube. Made Aquaforest Stonefix cement cubes from a silicon ice cube mould and then covered with epoxy. I found covering with epoxy makes it hold together better as the cement can crumble away at the edges when moving around the structure but the epoxy doesn't and it stays solid.