Vortec

[jfl14609]

I asked this question in my local forum but I thought I might get some different info on a larger scale here. I hae a 180 gallon mixed reef a lott of sps. do you think a single vortec would make a nice wave in it or do I need two

[trippkid]

I would go with 2 at least if it were me. I plan on adding two more units to my 120 when I can afford to. Good luck.
Matt

[lionspride]

I agree, at least 2

[VaderWS6]

I only have 1 on my 75 gallon, along with a maximod. I definitely think 2 would be best. If only they weren't so expensive!! :mad2:

[jlaurence32]

I had a single on my 125gal 72" for a short time. It was hard to get a wave, but I could get one going. It really only circulated the water in 1/2 of the tank though. The undertow is so great with these that it only pushes water out about 2-3 feet then sucks it back in, thru the undertow. That's why two are really needed, one for each side.

[mga345]

You can't go with only one. Two will be the minimum. Three will be fine.
It all depends on the amount and structure of the rocks in the tank.
I have three pumps in my 125G mixed reef tank and am very satisfied.