Reef Central Online Community
Marine Depot

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community > General Interest Forums > The Reef Chemistry Forum
Register Blogs FAQ Calendar Mark Forums Read

Notices

User Tag List

Reply
Thread Tools
Old 05/16/2018, 05:02 PM   #1
smartwater101
Registered Member
 
smartwater101's Avatar
 
Join Date: Aug 2012
Location: Los Angeles
Posts: 345
Daisy chaining reactors: Wouldn't it be better to have GFO first? (managing flow)

I notice a lot of people say they run Carbon FIRST while daisy chaining reactors. But I don't see a lot of explanations for this. Considering GFO needs a more specific flow rate, wouldn't it be better to have that first... then run to the carbon in a second chamber?

I've split off my return pump (w/ gate valve) to run to a couple reactors and wanted to see what other people are doing and why.

Thanks


__________________
180g community reef
smartwater101 is online now   Reply With Quote
Old 05/16/2018, 06:18 PM   #2
josephxsxn
Paladin of Technology
 
josephxsxn's Avatar
 
Join Date: Oct 2017
Location: DTW, Michigan
Posts: 90
I would wonder if the GFO effluent would have something in it that would use the carbon up *shrug*. With that line if thinking carbon first absorbs stuff from the tank and not all the GFO stuff. This is 100% speculation on my part but is the only reason I could think to do Carbon first.


josephxsxn is offline   Reply With Quote
Old 05/16/2018, 06:54 PM   #3
smartwater101
Registered Member
 
smartwater101's Avatar
 
Join Date: Aug 2012
Location: Los Angeles
Posts: 345
Quote:
Originally Posted by josephxsxn View Post
I would wonder if the GFO effluent would have something in it that would use the carbon up *shrug*. With that line if thinking carbon first absorbs stuff from the tank and not all the GFO stuff. This is 100% speculation on my part but is the only reason I could think to do Carbon first.
Do you think the flow needed for GFO movement would churn the Carbon too much? Carbon doesn't need a ton of flow correct?


__________________
180g community reef
smartwater101 is online now   Reply With Quote
Old 05/16/2018, 09:46 PM   #4
LobsterOfJustice
Recovering Detritophobe
 
LobsterOfJustice's Avatar
 
Join Date: Jan 2004
Location: Cary, NC
Posts: 7,354
If you daisy chain them, they’re going to see the same flow rate regardless of what order you put them in.

Sometimes people recommend carbon first because cheap or lower quality carbon can leach phosphate. I think that was more of a problem a while ago and not so much any more but maybe a habit that stuck.


Sent from my iPhone using Tapatalk


__________________
If it's worth doing, it's worth doing right.

I remember when zoanthids were called things like "green" and "orange" and not "reverse gorilla nipple."

Current Tank Info: 180g reef with all the bells and whistles
LobsterOfJustice is online now   Reply With Quote
Old 05/16/2018, 09:50 PM   #5
bertoni
RC Mod
 
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 86,882
I agree that the amount of flow for GFO might be a bit too much for carbon. I'd be very careful about that. The flow rate through both filters will be the same if they are feeding from the same pump and don't have a T somewhere.


__________________
Jonathan Bertoni
bertoni is offline   Reply With Quote
Old 05/17/2018, 05:33 AM   #6
RobZilla04
Registered Member
 
RobZilla04's Avatar
 
Join Date: Sep 2016
Location: St. Augustine, FL
Posts: 1,772
Daisy chaining these two together is sure to lead to problems IMO. Flow too high for either media (no matter which is first) is going to create over tumbling and breakdown of the particles. After that the small dusty breakdown is going to end up escaping the reactors and flowing through the entire system. That's bad.

Understanding the pain in replumbing the return to include two "T" offs that option is still better than daisy chaining IMHO. The only other solution I see are two small pumps, one for each reactor as a stand alone.

Best of luck.


__________________
90g Mixed Reef
RobZilla04 is online now   Reply With Quote
Old 05/17/2018, 10:36 AM   #7
tmz
ReefKeeping Mag staff

 
tmz's Avatar
 
Join Date: Apr 2006
Location: West Seneca NY
Posts: 27,671
I think the carbon helps remove the organics, putting cleaner water to the GFO leaving more clean surface area. However, overall I prefer to run them separately for flow control and media changes based on the specific exhaustion of one or the other . If the pump is the issue you can tee one off with separate flow controls for each reactor.


__________________
Tom

Current Tank Info: Tank of the Month , November 2011 : 600gal integrated system: 3 display tanks (120 g, 90g, 89g),several frag/grow out tanks, macroalgae refugia, cryptic zones. 40+ fish, seahorses, sps,lps,leathers, zoanthidae and non photosynthetic corals.
tmz is online now   Reply With Quote
Reply

Thread Tools

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 On

Forum Jump


All times are GMT -6. The time now is 09:58 AM.


TapaTalk Enabled

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright ©1999-2014
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.