<a href=showthread.php?s=&postid=15414605#post15414605 target=_blank>Originally posted</a> by Husky_1
Sirjohn,
Do you have the Vortech's running a wave? I am interested in getting these, but was wondering how the wave action is, and also how it affects your tank/stand.
Anyway, as everyone said, your setup is looking great!
Husky, I'm glad you asked this. For most of the tank's life, I had the Vortech's on opposite walls of the tank, about mid-way from the bottom and the sides (you can see this in earlier pictures), running in the "Lagoon" setting. I was never happy with this placement. It simply created too much flow in the middle of the tank, creating a sandstorm and making coral placement a real challenge. I don't think the fish liked it either. They seem to avoid the middle area of the tank--which is obviously where you want them--and instead seemed to congregate in the lower-flow areas off to the side and even the back of the tank. My first RBTA, for example, ended up way in the back of the tank where I could barely see it.
So about a week ago, I spent the better part of 3 hours moving them around the tank to see if I could find a better spot. I finally settled on placing them towards the rear of the tank, right next to the overflow, opposite each other, about 3 inches or so from the water's surface, running in the constant "on" setting. I absolutely love this placement. The two Vortech's push water, which collides in the middle of the tank or so, and spreads up, down and over the rocks in the middle of the tank. The result is that all areas seem to be getting flow, but not an overpowering flow like before. The fish are now spending a ton of time in the middle of the tank and my torch coral (which was buffeted before) is now extending about 30% more. Another benefit is that if you want heavy surface action, you can ratch them up and you'll create a wave that flows from the corner to the open portion of the tank.
I really need to get a video but that's the best way I can describe it.
Of course, if you have a barebottom SPS tank, you might want the Vortechs placed where I originally had them and bombard the tank with flow from both sides.