How many Vortechs?

[dieselab]

I have 3 on my elos 120xl and my corals love it. All depends on placement and settings you choose.

 

[cbrguy]

I have 4 on my 120. I don't have a snow storm and I creates nice flow. They will be moved to my 48x30x26 tank...

 

[HighlandReef]

you could always just buy 1 or 2 and see how you like it, if you need more flow buy more

 

[t4zalews]

I use 1 and a koralia 4 on my 65 and the flow is perfect. I'd suggest using for a full blown SPS tank of that length at least 2, but probably more around the 4 range. but that depends on what your return is like, 2 will work if you have your returns in the right place and a good return pump

 

[jmoney]

<a href=showthread.php?s=&postid=15473348#post15473348 target=_blank>Originally posted</a> by CGRANT
if you put 4 mp40's on that tank its gonna look like a snow storm from all your sand being blown everywhere...

if you place them right there will be no snowstorm, i run one on a 4foot 75 gallon at full blast with sugarfine sand, and it does not blow around

 

[Flatlander]

My friends sps tank, is 5 by 2 by 2 and he runs two MP 40,s and a Mag 12 return pump. Lots of current.

 

[68sting]

I have 2 on a 6ft long 215 with sugar fine. I'm very happpy with them but the sugar fine is a pain. It does get picked up.

 

[Mike31154]

Two in my 75g, one at each end, dialed down to about 75% in long pulse mode (approx 10 sec interval), master & slave, antisynch.

 

[maynardjames]

have 1 on my 120. needs 2.plan on getting another someday. have a 3 & 4 koralia in now placed for flow behind rockwork

 

[lobsterotomy]

I would say 2 at the very minimum in a SPS heavy tank. I have a 20g tank with a mp20 and I have it at 100% and have no sandstorms.