I just installed my wavebox last week, and while I get a 1" rise and fall (water level) at the ends of the tank. The amount of movement in the tank is no were near what I thought it would be. In the videos I've seen, you could see the fish riding the wave and the corals rocking back and forth. In my tank, unless the fish go right in front of the out put it looks like they are sitting still, and only my millies have any visuall movement (back & forth). I just read a post about the out put being pointed upward, which mine is not, but are there any other factors I can look at. The tank is 8 feet long (240 gal.) does thie play into this. Should I try and remove some rock? Any help is welcome.