I have run vortechs, but found the lack of adjustment (in terms of direction) a bit frustrating in a small tank or a tank with corals growing more densely. They also don't look as good on the sides of the tank as they do on the back.
I now run x4 tunze with a 7096 multicontroller (x2 stream 3s, a 6055 and a 6095) in my 90-gallon tank, each hooked up to a 12Ah SLA battery. The stream 3s are great for generating gyres, and if the 6055 and 6095 are placed nearer to the bottom and pointing up at the surface, they also generate a more diffuse gyre flow. The ability to aim the flow up and over corals is great.
I now run x4 tunze with a 7096 multicontroller (x2 stream 3s, a 6055 and a 6095) in my 90-gallon tank, each hooked up to a 12Ah SLA battery. The stream 3s are great for generating gyres, and if the 6055 and 6095 are placed nearer to the bottom and pointing up at the surface, they also generate a more diffuse gyre flow. The ability to aim the flow up and over corals is great.


