[boozeman]

some good ideas so far. Note that some corals and fish do enjoy 'caotic flow' created when opposing curents collide. If you want to get 'crazy' you can make cutouts into that end overflow to accomodate two pairs of tunzes and then pair them with the controller to created alternating flow. First two pulsing on top then... off...then two pulsing on the bottom. This should force the majority of the water into a circular pattern across the tank. as for the center overflow part... rigging a pair of wavyseas at the top powered by some high flow pumps would provide awesome chaotic frow at the end. that was what I had planed for my large penninsula tank that I was going to build. but that was for a 300+ gal tank and is a bit overkill on a 180. But...thats not to say that you couldnt do a similar thing with that OM4way.