[mike31154]

I have a VorTech MP40W in my 75 gal, 4 foot tank. It's costly but I don't regret the purchase in the least, the flow is amazing. I'm even hoping to get a second one to install on the opposite side. Then I can dial them down a little and eliminate a slight dead spot I have on the side of the tank without the pump. I'm planning a 90 gal in the future and I'm sure two will be the ticket for that.

For your 6 footer you will definitely want two VorTechs. With the controllers you'll have no problem creating a wave, even if you have to install them both on the same side. I run mine in long pulse mode about 4 inches below the surface, which doesn't create a surface wave, but does provide a natural undulation of my BTA and a distinctive undertow along the substrate.

Some of the earlier responses to this thread mention building an acrylic box inside the tank to see how a wavebox might look. Well, if you don't want to see the dry side of the VorTech with it's wires on the outside of the tank, you may consider doing the same thing to hide the dry side of the pumps inside your tank. You'll need to make sure the box, whether glass or acrylic is completely waterproof and perhaps extends a little higher than the top of your tank. That shouldn't be an issue since that part will be hidden by your canopy. The 'dry' box will need to be about 2 and 1/2 inches deep to house the dry side and the wet side will protrude another 2 and 1/2 inches into the tank, so probably just about as unsightly as a wavebox. This is a solution some folks have used that have tanks whose panes exceed 3/4 inch thickness, which is the max thickness that a VorTech can handle without the wet side falling off. They build a dry box with sides of a smaller thickness and away they go.