Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater & Reef - Getting Started
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 06-06-2012, 03:11 PM   #1
Aquarium Advice FINatic
 
daney90's Avatar
 
Join Date: May 2012
Location: Toronto, Canada
Posts: 523
How much flow do I need?

Hello, I have a 55 gal tank( long standard size) and I'm planning on having a sump under my DT. My problem is that I don't know how much flow I need for my return pump. Some people said around 550-850 gph and some others would recommend using at least 1000+ gph.

I'm planning on a reef tank and DIY pvc overflow if that helps.
__________________

__________________
daney90 is offline   Reply With Quote
Old 06-06-2012, 03:21 PM   #2
Aquarium Advice Addict
 
AquaRick's Avatar
 
Join Date: Sep 2011
Location: Northern CA
Posts: 2,638
Just to be clear, the return pump isn't always the only source of flow. Personally I'm a huge fan of a low flow return pump 3-5x tank volume so that your skimmer can work more efficiently. I have some reactors that T off from my return pump so i opted for a larger pump than needed for the 3-5x flow.

Powerheads in your DT make up for the total flow in your tank.
__________________

__________________
225G Reef Upgrade
AquaRick is offline   Reply With Quote
Old 06-06-2012, 03:32 PM   #3
Aquarium Advice FINatic
 
daney90's Avatar
 
Join Date: May 2012
Location: Toronto, Canada
Posts: 523
I already bought 2x 800gph power head for my DT. So how much flow of the return pump are you going to recommend?

Thanks
__________________
daney90 is offline   Reply With Quote
Old 06-06-2012, 04:40 PM   #4
Aquarium Advice Addict
 
Hondatek's Avatar



POTM Champion
 
Join Date: May 2011
Location: Virginia Beach
Posts: 3,969
I agree with rick i prefer slower return pumps. It depends on how much your overflow can take. Do you know what your overflow is rated for?
__________________
Feed your Filtration
Give it to Porc Chop he'll eat anything!!!!!
"This is my tank and these other fish just live in it"
^ Quoted from Porc Chop^
Hondatek is offline   Reply With Quote
Old 06-06-2012, 04:46 PM   #5
Aquarium Advice Addict
 
AquaRick's Avatar
 
Join Date: Sep 2011
Location: Northern CA
Posts: 2,638
Quote:
Originally Posted by daney90 View Post
I already bought 2x 800gph power head for my DT. So how much flow of the return pump are you going to recommend?

Thanks
Your return pump will also depend on your headloss (distance between the surface water of your tank and the surface water of your sump). Once you account for that I'd get something with a 200-300 gph flow rate. Take a look at the mag pumps. I'd go with a Mag 5 depending on the headloss factor.
__________________
225G Reef Upgrade
AquaRick is offline   Reply With Quote
Old 06-07-2012, 01:04 AM   #6
Aquarium Advice FINatic
 
daney90's Avatar
 
Join Date: May 2012
Location: Toronto, Canada
Posts: 523
@hondatek For my over flow I'm doing a DIY 3/4"pvc or maybe 1/2"


@aquarick I just measured the headloss and it is about 4feet.
__________________
daney90 is offline   Reply With Quote
Old 06-07-2012, 01:05 AM   #7
Aquarium Advice FINatic
 
daney90's Avatar
 
Join Date: May 2012
Location: Toronto, Canada
Posts: 523
Would a 200-300gph flow rate be enough?
__________________
daney90 is offline   Reply With Quote
Old 06-07-2012, 07:38 PM   #8
Aquarium Advice Addict
 
Grizz's Avatar
 
Join Date: Apr 2011
Location: Saratoga NY
Posts: 1,806
I'd go with 3/4" in min and two at that 1/2" is way to small IMO. two 3/4"s with a mag 5 will work out well if one gets plugged the other can keep up with the return pump I'm running a mag 7 with two 1" pvc over flows 4ft of head and run the return wide open i have about 600-640 GPH return flow in a 180 with a 55 gal sump, the cheato in the fuge area turns over real slow
__________________
Most people create their own problems by not following the basics and refusing to stock appropriate to their system. Gregcoyote 2013

SPS = Stability Promotes Success
Grizz is offline   Reply With Quote
Old 06-08-2012, 02:35 AM   #9
Aquarium Advice Addict
 
AquaRick's Avatar
 
Join Date: Sep 2011
Location: Northern CA
Posts: 2,638
Quote:
Originally Posted by daney90 View Post
@hondatek For my over flow I'm doing a DIY 3/4"pvc or maybe 1/2"

1/2 is awfully small in diameter. 3/4 should be decent on a 55g. I'd go with two overflow pipes and one return pipe (1/2" or 3/4" depending on your return pump outlet).

@aquarick I just measured the headloss and it is about 4feet.
Check out a Mag7. Has 480gph @ 4' of head loss. Odds are if you have a decent number of elbows your headloss will be closer to 5'. If you don't have too many elbows you can try a mag5. Check out reviews and see what others have done. Personally I'd probably go with a mag7 just in case you want to T off your return and run a reactor off of it in the future.
__________________

__________________
225G Reef Upgrade
AquaRick is offline   Reply With Quote
Reply

Tags
flow

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off








» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 09:38 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.