Saw this video, this thing is awesome!!! I like the different wave functions, a shame about the price though, but I guess you pay for awesomeness.
Oh yeah, are you going to put the tippy tops of rocks peaking above the water to create the waves crashing against rock effect?
Plus you get 1500 GPH+ of flow lol. In a 33.6 gallon tank
I wanted the whole crashing waves effect, but I couldn't get the height I needed with the scape. The cinder blocks behind the rocks in the pics above are 17" tall. The top of the top rock is 11.5", and the tank is 18" tall. Subtract three inches to get the water- level at 15"