How much flow do you have?

Have you done the head loss calculator on Reef Central? That seems like a lot of flow in a 60, and I wonder if you are really getting that much. I run a 58, and am looking at replacing a pump for quiet and reliability. I've done a lot of calculations at Reef Central, and you get quite a different idea of what your pump is actually doing. Are you also running power heads in your tank? That's where I get a lot of my water movement.

 

In my 90 i have only a mp40 which is rated at 3k gph at max. I probably run it around 2200 and plan on getting another. On my 55 i had 2 k2 and just didnt feel it was enough.

 

I'm running 4 x MP40Ws on my 120. They run in lagoon mode at about 1/2 speed maximum. There's the potential for 14,400 max GPH, but I would imagine that I'm running closer to 5000 to 7200 GPH variable speed flow...and I still have dead spots. I keep a mix of everything...softies (primarily zoas and palys), LPS and SPS. I can't remember what the number that Calfo threw out there for turnover in an SPS dominated tank...but I thought it was something like 80x.

--AJ

 

I have around 70x turnover but would like to have more.

 

from what i have heard though the K2's aren't really that great of a pump, they seem to not produce what you would expect. I had a couple before with my 120 and my 125 and did not like them that much, the bigger Koralia's i didn't have a problem with but the 2's just didn't do well for me

 

I agree with snowman, I dont think the K2's are all that.

 

I run about 80X turnover on a 120 gallon tank with 4 Tunze pumps and an ATB flow star return pump.

 

the thing about multiple pumps is probably true in many cases but with the vortechs you have a nice wide flow with  variable speeds.  and depending on the mode you get flow from both directions.

 

Yeah, in my case, one is on each side, about 2/3 of the way up, and two are on the back wall, about 1/3 of the way up...so I get variable speed flow from three directions.
--AJ

 

I have 4x1,400 flow on a wavemaker + 3,000 return pump (at 0' so some head loss) would put my 210 in the potential for 40x but given the head loss and wavemaker I would estimate about 20-25x.