is mag 7 too much flow for this tank?

latazyo · 07/26/2006, 10:59 AM

would a mag 7 be too much flow for my set up

tank is a 37g 24x18x18 and the sump is a 30g aquarium

the total water volume is about 60g

after elbows, t's etc, Im expecting the mag to push about 400 gph

this is about 6.66x turnover/hour

is that acceptable?

Andrew · 07/26/2006, 11:01 AM

Thats fine for a 37 gallon. I used to run around 500 gph on my 20H and it was fine. I also had some extra flow help from a powerhead.

skeeter-doc · 07/26/2006, 11:02 AM

yes that flow sounds fine, will keep your corals very happy!

firedogg2 · 07/26/2006, 03:17 PM

I use a mag 9.5 on my 20gal. After all the splits and elbows I would say I'm runing between 700 and 800gph. No problems at all..

reefdood · 07/26/2006, 04:01 PM

My mag7 went from my sump, through a chiller and returned to tank. With two 90's on the return it seemed like it wasn't enough flow. This time I'm using all flex tubing with no 90's and will see if it helps. I'm sure the chiller puts most of the pressure on it anyway.

six.line · 07/26/2006, 04:31 PM

Rules on flow:

1: You can never have too much flow.
2: The only time you can have too much flow is if the sand is kicked up.
3: Ignore rule number 2 if you want to.

latazyo · 07/26/2006, 04:42 PM

will a 1" drain be sufficient?

mg426 · 07/26/2006, 04:44 PM

1 inch will handle around 600 gals/hr

six.line · 07/26/2006, 04:45 PM

What are the fittings on the Mag7? I think (I'm not sure though) that they're a 3/4". If they are, you'd be fine with either. Usually I try to match the fittings on the pump.

latazyo · 07/26/2006, 05:28 PM

mag 7 has 1/2 fittings

I am also considering goign with a quietone 4000

a bit more flow, but I plan on putting 2 Y's on it and 3 outlets, along with a T into the fuge, so I think I'll be able to get the flow down to under 600

my overflow is drilled for a 1" drain, but I could use that for the return (since the quietone 4000 has 1" outlet) and drill a larger drain in there for the additional flow....at least I have acrylic and options huh?

latazyo · 07/26/2006, 08:39 PM

well I decided to go with the quietone 4000

07/26/2006, 10:59 AM	#1
latazyo Registered Member Join Date: Feb 2003 Posts: 3,972	is mag 7 too much flow for this tank? would a mag 7 be too much flow for my set up tank is a 37g 24x18x18 and the sump is a 30g aquarium the total water volume is about 60g after elbows, t's etc, Im expecting the mag to push about 400 gph this is about 6.66x turnover/hour is that acceptable? __________________ Friends dont let friends use HOB overflows.

07/26/2006, 03:17 PM	#4
firedogg2 Registered Member Join Date: Mar 2006 Location: Fort Myers, Florida Posts: 318	I use a mag 9.5 on my 20gal. After all the splits and elbows I would say I'm runing between 700 and 800gph. No problems at all.. __________________ I'll never be done, will I? Current Tank Info: 20gal Nano Reef. 10gal sump, 150w MH.

07/26/2006, 04:01 PM	#5
reefdood Registered Member Join Date: Oct 2004 Location: Metairie, LA Posts: 1,553	My mag7 went from my sump, through a chiller and returned to tank. With two 90's on the return it seemed like it wasn't enough flow. This time I'm using all flex tubing with no 90's and will see if it helps. I'm sure the chiller puts most of the pressure on it anyway. __________________ ~I am Fragholio!~ ~I need species for my fraghole!~ Current Tank Info: 30g drilled display with a 20g sump, modded CPR skimmer in sump, Mag7 return, 1/4 hp chiller, Ranco DS, 175w Hamilton, (3) 3' VHO, IC 660, (2) hacksawed MJ 900's on a Waveaster Pro, LED moonlights, and an inch of sand.

07/26/2006, 04:31 PM	#6
six.line Registered Member Join Date: Dec 2005 Location: Logan, UT Posts: 775	Rules on flow: 1: You can never have too much flow. 2: The only time you can have too much flow is if the sand is kicked up. 3: Ignore rule number 2 if you want to. __________________ This post approved by Mrs. Sixline. assign <= six.line(#FFFFFF && string("nerdy")) Current Tank Info: 30 gallon with 10 gallon sump

07/26/2006, 04:42 PM	#7
latazyo Registered Member Join Date: Feb 2003 Posts: 3,972	will a 1" drain be sufficient? __________________ Friends dont let friends use HOB overflows.

07/26/2006, 11:01 AM	#2
Andrew Registered Member Join Date: Nov 2004 Location: Columbus, OH Posts: 13,640	Thats fine for a 37 gallon. I used to run around 500 gph on my 20H and it was fine. I also had some extra flow help from a powerhead.

07/26/2006, 11:02 AM	#3
skeeter-doc Moved On Join Date: Apr 2006 Location: TX Posts: 1,643	yes that flow sounds fine, will keep your corals very happy!

07/26/2006, 04:44 PM	#8
mg426 Registered Member Join Date: Jan 2006 Location: maryland Posts: 6,923	1 inch will handle around 600 gals/hr __________________ I found a way to make a small fortune running a reef tank. Start with a large fortune. Unofficial President of the SEACLONE haters club Current Tank Info: 125 mixed reef 110 lbs LR, 1x250watt XM 20K MH 2x175watt XM 20K MH on Magetics 2X96 watt actinic PC, 220 watt VHO actinic, 30 gallon refugium, closed loop system powered by Sequence Dart MSX 200 skimmer 38 gallon sump, Oceansmotions squirt

07/26/2006, 04:45 PM	#9
six.line Registered Member Join Date: Dec 2005 Location: Logan, UT Posts: 775	What are the fittings on the Mag7? I think (I'm not sure though) that they're a 3/4". If they are, you'd be fine with either. Usually I try to match the fittings on the pump. __________________ This post approved by Mrs. Sixline. assign <= six.line(#FFFFFF && string("nerdy")) Current Tank Info: 30 gallon with 10 gallon sump

07/26/2006, 05:28 PM	#10
latazyo Registered Member Join Date: Feb 2003 Posts: 3,972	mag 7 has 1/2 fittings I am also considering goign with a quietone 4000 a bit more flow, but I plan on putting 2 Y's on it and 3 outlets, along with a T into the fuge, so I think I'll be able to get the flow down to under 600 my overflow is drilled for a 1" drain, but I could use that for the return (since the quietone 4000 has 1" outlet) and drill a larger drain in there for the additional flow....at least I have acrylic and options huh? __________________ Friends dont let friends use HOB overflows.

07/26/2006, 08:39 PM	#11
latazyo Registered Member Join Date: Feb 2003 Posts: 3,972	well I decided to go with the quietone 4000 __________________ Friends dont let friends use HOB overflows.