i am having a little issue with a wavebox i just picked up. i set it all up the way it was supposed to be done and nothing. it makes a little wave but nothing like the wave it was making used same setting just not the same. it was on a 7 or 8 ft tank now its on a 6ft. and i am lucky if i get 1/2 in. do any of the tunze guys have any suggestions. i got ti to try out an see if i like this or the vortechs better.