Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
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 11-29-2009, 07:54 PM   #1
Aquarium Advice Activist
 
Join Date: Sep 2009
Location: Omaha, NE.
Posts: 156
Another water movement question.

I have a 75 gal reef tank with some stonies, LPS, leathers, button polyps, mushrooms, etc. I have a 1200 gph return pump in my sump. After all of the tubing back up to the tank and through a SCWD, I'm getting roughly 800-900 gph. The two returns for the sump pump are in the top back corners of the tank. They are pointed down at the opposite corners in the front of the tank so they essentially make an "X" pattern of water flow in the tank. I also have a small power head, center, on the top of the back of the tank pointed down at the bottom of the front of the tank. This powerhead is about 120 gph so in total I'm getting 900-1000 gph or so.
I'm thinking about getting 1-2 powerheads in place of the small powerhead in the top center of the back of the tank and I'm not sure what to get. I would like the total GPH to be between 1800-2000 GPH (hopefully that's not too much). I'm not sure if I want to get two small koralia (size 1 or 2), one bigger koralia (size 3), or one or two regular powerhead(s). If I get one unit, it would probably be pointed in the same direction as the one I have in there now. If I get two, I would put them side by side in the same spot and point them to the bottom corners in the front of the tank, essentially going from a big 1 "X" pattern to 2 smaller "X" patterns in the tank(one on each half of the tank). Hopefully this makes sense. Which do you think would be better? Any feedback would be appreciated.

Thanks,
Keith
__________________

__________________
Keith A. is offline   Reply With Quote
Old 11-29-2009, 11:08 PM   #2
HN1
Aquarium Advice Addict
 
HN1's Avatar


 
Join Date: May 2009
Location: Ga
Posts: 8,169
I'd say 2 patterns are better, but it will really depend on your rockwork. Tinker with them overtime and watch your corals. They'll let you know what they like.
__________________

__________________
Question everything you see on the internet. ~ George Orwell
HN1 is offline   Reply With Quote
Old 11-30-2009, 02:17 AM   #3
Aquarium Advice Addict
 
bavass's Avatar

POTM Champion
 
Join Date: Dec 2006
Location: Waynesboro Virginia
Posts: 1,797
I love my two Hydor Koralia its a lot of soft water movment
__________________
bavass is offline   Reply With Quote
Old 11-30-2009, 02:24 AM   #4
Aquarium Advice Addict
 
Join Date: Sep 2009
Location: salt lake city utah
Posts: 2,249
Send a message via MSN to abrahamavelar Send a message via Yahoo to abrahamavelar
i have a 75 gal and i use 2 koralia number 3 and i get really good flow
__________________
abrahamavelar is offline   Reply With Quote
Old 11-30-2009, 04:11 AM   #5
Aquarium Advice Addict
 
thincat's Avatar
 
Join Date: Nov 2008
Posts: 5,330
How much money are you willing to spend? The two Koralia #2's are great for a tank your size, but it depends on if you want to use a wavemaker in the future. You can mod the koralias for a wavemaker but Maxijets are better for that purpose.
__________________
Happy Reefing,
TC
thincat is offline   Reply With Quote
Old 11-30-2009, 08:56 AM   #6
SW 20 & Over Club
 
ccCapt's Avatar


 
Join Date: Mar 2004
Location: Northeast PA
Posts: 5,362
Send a message via ICQ to ccCapt
I question the rate of your return pump. How many overflows do you have and what are they rated for? If it's a ReefReady predrilled tank, it comes with 1 overflow capable of handling aprox 600 gph.

When I had my 75 running, I used 2 K-3's and a 600 gph RIO powerhead. The K-3's where in the back corner pointing towards the front center and the Rio was in the back center pointing towards the front.
__________________
/Larry
125g reef
See My Tank Info
Check out The build project
ccCapt is offline   Reply With Quote
Old 11-30-2009, 04:54 PM   #7
Aquarium Advice FINatic
 
Join Date: Apr 2006
Location: Ottawa, Canada
Posts: 787
I've got a 90G with two Koralia 4s and a maxijet 1200. The return pump is probably doing about 600-800GPH and each Koralia is positioned on the side of the tank (one close to the front glass and the other close to the back) and pointed slightly up. The maxijet is on a wavemaker bar but I'll likely be replacing it soon for a koralia nano. As for flow, I have candycane that is about seven inches from the front, and a bit off to the side, of the one koralia4 and it seems to be doing very well. The only thing in the tank that doesn't seem to be doing so well is the frogspawn. It's just not opening up much.
__________________
Jaybird is offline   Reply With Quote
Old 11-30-2009, 10:38 PM   #8
Aquarium Advice Addict
 
thincat's Avatar
 
Join Date: Nov 2008
Posts: 5,330
Is the PH really blowing the frogspawn out the window? They seem to like a fairly strong current, but not overly strong.
__________________
Happy Reefing,
TC
thincat is offline   Reply With Quote
Old 11-30-2009, 11:11 PM   #9
Aquarium Advice FINatic
 
Join Date: Apr 2006
Location: Ottawa, Canada
Posts: 787
Not any more than enough to gently wave the tentacles. I've got a finger leather that loves it almost in front of the koralia4. The frogspawn just gets a gentle flow and lots of light
__________________
Jaybird is offline   Reply With Quote
Old 11-30-2009, 11:40 PM   #10
Aquarium Advice Activist
 
Join Date: Sep 2009
Location: Omaha, NE.
Posts: 156


Here is a pic of my 75 gal tank so you can see the rockwork. I have a SCWD on tha back of it so I wasn't really thinking of getting a wave maker. The trickle filter is designed for a 150 gal tank. I was originally thinking about getting a bigger return pump in the sump. However, the pump that I would need to get the gph I want would be physically too big for the sump part of the filter. So I decided to go with the powerheads instead. I have the two returns in the top back corner for the return pump from the sump and a powerhead on the back of the tank in the middle top. I was thinking about replacing the powerhead for one or two powerheads or one or two koralias. From what I understand, the koralias have a bigger exit nozzle than a powerhead and moves water more like a wall where as a powerhead, with the smaller exit nozzle, would move the water in more of a narrow stream. Is that correct? If so, Would a stream flow be better or more of a bigger wall flow? Would the powerhead move the water a further distance in the tank than a koralia?

Thanks for the feedback so far.

Keith
__________________

__________________
Keith A. is offline   Reply With Quote
Reply

Tags
movement

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
cannister filter question and water movement new2betas Freshwater & Brackish - General Discussion 2 03-31-2009 02:45 PM
Maxi-jet power heads/water movement question Voodoo Chilli Saltwater & Reef - Getting Started 6 10-23-2006 03:47 PM
Water Movement Question johnd4g Saltwater Fish Only & FOWLR 6 01-23-2005 02:06 PM
Water movement question...... c0mf0rt General Hardware/Equipment Discussion 6 11-26-2004 05:11 PM
water movement BBReef Freshwater & Brackish - General Discussion 3 02-20-2004 11:16 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 02:51 AM.


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