Creating a wave motion in a small environment is tougher than you think CF. Sizing/tuning a wavemaker that works for all sorts of tank dimensions is not easy. Could be yours just wasn't very ideal for it. I've seen the nano waveboxes at my LFS running on long 100gal tanks and they work GREAT. Nice long natural wavemotion period. *shrug*

unless you count the photos I took to sell the thing!
. I am not sure Euphyllia Spp would be very happy about being in your 'washing machine'