tunze system

[zaf888]

hi all. i have a 90g corner but im finally realizing a dream and building a 240 tall into my wall. anyway i want to do everythign right on this tank so im going to go with a 3.5 to 4" bed of bahamas oolite ultra fine sand. my question is this, im planning on a wavebox and 2 6100 streams. # 1- do u think this is enough movement ( i believe the tan is 72 x 24 x 31??). #2 will the water movement keep the fine sand in a suspension forever?? should i just go with a larger grain to prevent this from happening?? #3 will the wavebox mess with the performance of the overflow that is on the side of the tank??

[rvitko]

The wavebox works best with the overflow centered on the back wall, end over flows will be louder (splash) and make for a shorter wave. The wavebox tends to cause the sand to form dunes, it doesn't lift it very much, the 6100's are more likely to cause this but it is a very deep tank so I think you should be OK.