gph in a 125

[ghostrida3]

is 4000 gph enought flow for a 125 gal sps tank?

[oldreefer76]

hmm have 900 gph in a 15g and upgrading to 1220 gph with a tunze 6045 this weekend, so will let others chime in

[Cody Ray]

That is 32xph. It really depends on how you are providing it. Could you give a little information on how you are doing it?

[ghostrida3]

sure, my return from the sump is in the center rear of the tank and is pushing about 700gph back in, i also am assembling a closed loop w/ mag 36 that will push 3000gph(1500 out of 2 exits). each exit faces each other at opposing ends of the tank.

[mpoletti]

Any type of "chaotic flow", say a sea swirl, ocean motion, tunze conrtollable pump?

[ghostrida3]

right but if w/ those things involved will 32xph be enough?

[Serioussnaps]

have you already set up the closed loop? got pics?

[RichConley]

Seriously, get rid of the mag36 and buy a sequence Dart, or something along those lines.

The Dart will pay for itself in less than a year on electricity costs alone.

I think 4Kgph is really low, personally.

[ghostrida3]

the closed loop is not complete, but it will be the same as on melevs reef only ime gonna cover the intake w/ foam. ime mainly trying to figure out if i can use a mag 36 or if i need something bigger. also what sequence dart woudl u recommend?

[Bax]

The Dart is the right sized Sequence pump to match, or out perform, the Mag 36.

The Dart will definitly give as good or better flow, for a lot less electricity, and even more important, a lot less heat.

I would add more outlets, maybe a total of 4 to give yourself more flow options. That said, I've built three CLs, used SCWDs, Sea Swirls, they worked OK. On my latest tank, I now use a Vor Tech & Tunzes I really like the flow. FWIW I have about 55 - 60 x in my 120 and food pellets actually travel through random holes & tunnels in the live rock nothing sits on the bottom of the tank and the fish & corals love it.

If you are going over the top with a draw tube for that kind of flow, be sure there is at least 2" pipe with lots of intake surface to spread out the suction or you'll have fish sucked to that puppy.

[ghostrida3]

IVE BEEN LOOKIN AT THEIR CATOLOG, SHOULD I GO W/ SOMTHN W/ MORE GPH LIKE A BARRACUDA OR HAMMERHEAD. BY THE WAY APRECIATE THE ADVICE ON THE CLOSED LOOP I BEEN KINDA A NERVOUS ABOUT THE INTAKE BEING TOO STRONG.

[E-A-G-L-E-S]

I just finished setting up a 6' long 120g sps tank and i'm using 2x Vortech(3,000gph each), a seio 1500, and a Ocean Runner return pushing ~600gph after HL(8,100gph total).....and when i can afford to i will be replacing the seio with another vortech.
So obviously my opinion is to up the flow(double it or more).
Also, that mag 36 should be replaced as said above. and if you are looking to your closed llop for the vast majority of your flow, I personally would get the Sequence Hammerhead and use multiple outlets(4-8).

[ghostrida3]

thanks, also i heard that wave devices like the scwd would shorten the life of your pumps. is this been u guys expereince?

[old salty]

I've got a Mag12 and 2 Tunze 6100s pulsing between 60% and 100% every six seconds and I could use a bit more. The center of the tank gets great flow; it's the far ends that need help. This is on a 125g.

[drstupid]

<a href=showthread.php?s=&postid=9779568#post9779568 target=_blank>Originally posted</a> by ghostrida3
IVE BEEN LOOKIN AT THEIR CATOLOG, SHOULD I GO W/ SOMTHN W/ MORE GPH LIKE A BARRACUDA OR HAMMERHEAD. BY THE WAY APRECIATE THE ADVICE ON THE CLOSED LOOP I BEEN KINDA A NERVOUS ABOUT THE INTAKE BEING TOO STRONG.

these are pressure rated pumps, the dart is a flow pump. you'll get more turnover out of it in a closed loop (little head pressure) for less power.

i use a sequence 4300 for my return pump, it's pushing against a lot of head though. my sump's in the basement under the tank, and the return goes into a manifold looping around the top of the tank with six 3/4" outputs dropping down. even with all that plumbing and gravity to fight, i have to dial back the output a good 1/3 on a ball valve heading up to the return or my sump can't handle the flow. that thing could power a closed loop on a swimming pool.

i use a dart for my closed loop, it's great.

[Bax]

If you want more flow than the one Dart, use two, it's more efficient than one Baracuda. If you put one on some type of alternating current devise you could get some crazy flow going.

[ghostrida3]

<a href=showthread.php?s=&postid=9781235#post9781235 target=_blank>Originally posted</a> by Bax
If you want more flow than the one Dart, use two, it's more efficient than one Baracuda. If you put one on some type of alternating current devise you could get some crazy flow going.

W/ 2 WOULDNT I HAVE TO HAVE AN INTAKE PIPE IN THE TANK FOR EACH ONE? IME TRYIN TO MINIMALIZE THE PLUMBING, IS THERE A WAY TO PLUMB ONE INTAKE FOR 2 PUMPS?

[Bax]

I don;t think you could feed two Darts with one 2" feed line. I would look to dedicate one to each pump.

But the up side is, two Darts 120 watts x 2 = 240 Watts and over 6,000 gph.

One Baracuda 285 watts and about 4,200 gph. Those numbers are all off the top of my head, but they are close.

It may be worth a little extra plumbing.

[ghostrida3]

what about the 5800 gph model, i think its the hammerhead, i think one pump will be more economic. plus i dont want more pvc n the display than i can help.u think i should plumb in 4 exits or 6?

[E-A-G-L-E-S]

<a href=showthread.php?s=&postid=9779616#post9779616 target=_blank>Originally posted</a> by E-A-G-L-E-S
Also, that mag 36 should be replaced as said above. and if you are looking to your closed llop for the vast majority of your flow, I personally would get the Sequence Hammerhead and use multiple outlets(4-8).

please excuse the sloppy spelling....