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 10-28-2010, 06:09 PM   #1
Aquarium Advice Apprentice
 
Join Date: Aug 2010
Posts: 36
PWC question

Is it more or less the same thing if I do a 5 gallon water change for 5 days in a row versus changing 25 gallons all at once? The reason that i ask is because for now, I am limited to taking my 5 gallon jug to the grocery store in order to buy their RO/DI water. I understand that in the future I would like to get an RO/DI unit, but I need a quick solution for now. So, will it work? Or should I just keep filling the jug and transfering it over to my 18 gallon tupperware container?
__________________

__________________
metree7 is offline   Reply With Quote
Old 10-28-2010, 06:20 PM   #2
SW REEF 18+ YEARS
Community Admin
 
melosu58's Avatar



Tank of the Month Award
 
Join Date: Oct 2004
Location: Virginia
Posts: 38,244
To me it does not matter I like smaller frequent PWC`s but if you do it the other way you are still removing excessive nutrients at a bigger whack just waiting longer and allowing a longer period for them to rebuild. To me 6 half dozen or the other. Here is a good article on PWC`s.

Water Changes in Reef Aquaria by Randy Holmes-Farley - Reefkeeping.com
__________________

__________________

SITE ADMINISTRATOR

You can view many of my fish and corals in my photo albums in my profile.

View my tank


AA Community Rules|AA TOS

Forums 101 - posting, accounts, basics
melosu58 is offline   Reply With Quote
Old 10-28-2010, 11:18 PM   #3
member
 
Join Date: Sep 2010
Posts: 2,667
In freshwater bigger is better. Because of the time between water changes allowing things to build up 5x10% does not equal 50%. However, in saltwater it is usually better to do the smaller water changes because saltwater inhabitants are more sensitive to even the most subtle changes a water change can produce (temp, salinity, pH, etc.). Because of this it is safer to do smaller water changes. The usual recommendation is 10% weekly. Keep this up and you will prevent 90% of the problems you will face.
__________________
Fishguy2727 is offline   Reply With Quote
Old 10-28-2010, 11:57 PM   #4
Aquarium Advice Apprentice
 
Join Date: Aug 2010
Posts: 36
I guess I should have also mentioned that my tank has just finished cycling and that is why I am trying to do such a large water change. I have a 55 gallon tank and I am going to change about 50% of the water. The nitrates are at around 40 ppm and I want to get it as low as possible. That is why I am trying to dilute the nitrates over the course of five days or so.
__________________
metree7 is offline   Reply With Quote
Old 10-29-2010, 12:00 AM   #5
member
 
Join Date: Sep 2010
Posts: 2,667
That is different. With no livestock in yet you can go big like that. If you can only do 5 gallons at a time do them as often as possible until you get the nitrate down.

How much rock did you add?
How long has the tank been running?
__________________
Fishguy2727 is offline   Reply With Quote
Old 10-29-2010, 11:58 AM   #6
Aquarium Advice Addict
 
pat8you's Avatar
 
Join Date: Apr 2007
Location: Woodbridge, Va
Posts: 1,802
Send a message via AIM to pat8you
If you have no livestock i would say do one large change. If you do a bunch of small changes in a row each PWC after the first will be taking out a small percentage of the new water you just put in on the previous changes. Probably won't make that much of a difference in the end but that is the technical answer.
__________________
Pat
pat8you is offline   Reply With Quote
Old 10-29-2010, 12:49 PM   #7
AA Team Emeritus
 
Ziggy953's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Feb 2006
Location: Owings Mills, Maryland
Posts: 9,101
I agree with Pat. No live stock do a large PWC and get your levels down.
Ziggy953 is offline   Reply With Quote
Old 10-29-2010, 01:44 PM   #8
Aquarium Advice Apprentice
 
Join Date: Aug 2010
Posts: 36
My tank has been running for two months exactly, to the day. unfortunatly, I cycled my tank with damsels, as per the advice of my LFS. And yes, I did get alot of grief about it. So, I do have livestock in my tank and that is why I need to get my nitrites down. I also have about 15 pounds of live rock and 7 pounds of base rock. Although some af my base rock has started growing coralline algea, so I guess its slowly starting to become live rock.
__________________
metree7 is offline   Reply With Quote
Old 10-29-2010, 01:59 PM   #9
AA Team Emeritus
 
Ziggy953's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Feb 2006
Location: Owings Mills, Maryland
Posts: 9,101
I would still do a 25-30% PWC.

When doing a PWC you want to mix the SW up and let it stand (with a powerhead in it) for at least 24 hours. Heat the new SW to match that of the tank and do your water change. I usually let mine run for a couple of days in a 32g garbage can before doing my PWC.

I used to change 32+ gallons every other week on my system with no issues at all.
Ziggy953 is offline   Reply With Quote
Old 10-29-2010, 03:39 PM   #10
Aquarium Advice Addict
 
thincat's Avatar
 
Join Date: Nov 2008
Posts: 5,330
Is this going to be a fish only with LR or a reef setup. If it's going to be a reef you will need more base rock for a total of 1-2#'s per gallon size of tank. So a 55 would need ~55#'s to110 #'s of rock to be your main filtering.
__________________

__________________
Happy Reefing,
TC
thincat is offline   Reply With Quote
Reply

Tags
pwc

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
Question about PWC chriszzo Saltwater & Reef - Getting Started 4 10-18-2010 01:45 PM
PWC question! dkpate Freshwater & Brackish - Getting Started 13 10-03-2009 01:40 AM
Pwc question angeltank Freshwater & Brackish - General Discussion 44 02-26-2009 12:34 PM
PWC question new2betas Freshwater & Brackish - Getting Started 8 06-29-2008 01:38 PM
PWC...a question.... socalarsen Saltwater & Reef - Getting Started 9 04-20-2007 06:18 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 02:25 AM.


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