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 06-14-2005, 01:47 PM   #1
Aquarium Advice Activist
 
Join Date: Jan 2005
Location: West Virginia, USA
Posts: 107
Nitrate not lowered by PWC

My new SW tank is ready for fish. All I have to do now, is get no3 down to an acceptable level. My LFS said the a 10% pwc would do the trick.

I changed 3 gallons in the 29 gallon tank and no3 remained the same.

Should I do a larger change, or try a few more smaller ones? (It is a lot easier for me to do a 3 gallon change than it is for a larger one.)

tank stats before and after pwc:
nh3 = 0
no2 = 0
no3 = 50
sg = 1.023
temp = 80 deg f
pH = 8.3

thanks
__________________

__________________
If at first you don't succeed, try again. Then quit. There's no use being a **** fool about it.
-- W.C. Fields
minotaur is offline   Reply With Quote
Old 06-14-2005, 01:51 PM   #2
AA Team Emeritus
 
Join Date: Aug 2002
Location: Louisiana
Posts: 7,224
Send a message via Yahoo to Hara
How long did you cycle your tank, and when you did the water change, what type of water did you use?
__________________

__________________
Hara is offline   Reply With Quote
Old 06-14-2005, 01:56 PM   #3
Aquarium Advice Activist
 
Join Date: Jan 2005
Location: West Virginia, USA
Posts: 107
The tank has had no ammonia or no2 for about 2 weeks.

I used tap water, which was declorinated and sat out for 2 days. I also use Instant Ocean salt. Both of the lfs that carry lots of sw fish have said that our tap water is ok in our area.
__________________
If at first you don't succeed, try again. Then quit. There's no use being a **** fool about it.
-- W.C. Fields
minotaur is offline   Reply With Quote
Old 06-14-2005, 02:57 PM   #4
Aquarium Advice Addict
 
Join Date: May 2004
Location: Poughkeepsie, NY
Posts: 3,294
test your tap water for no3 and test the new sw for no3 . I would do a larger WC, you IMO a wc of 8-10 gals is fine.
__________________
9/02-125 REEF, 125 lbs LR,LS 4x160 VHO, Reef Devil /Sump, Fuge
7/03-55 FOWLR 60lb LR, 50 lb SD sand 2x40 NO strip light, Reef Devil/sump, Fuge

TANK PICS http://www.aquariumadvice.com/viewtopic.php?t=98202
seaham358 is offline   Reply With Quote
Old 06-14-2005, 03:54 PM   #5
Aquarium Advice Addict
 
Fluff's Avatar
 
Join Date: Apr 2004
Location: West Virginia
Posts: 11,423
I agree do larger water changes. Test your tap water for nitrates as mentioned. Mine is loaded with no3 and doing regular large waterchanges with RO/DI water was the only way I could make a dent in mine.
__________________
~Cindy
Fluff is offline   Reply With Quote
Old 06-14-2005, 04:13 PM   #6
Aquarium Advice Activist
 
Join Date: Jan 2005
Location: West Virginia, USA
Posts: 107
thanks, will check it tonight. If tap water has too much no3, i will try distilled.

thanks again
__________________
If at first you don't succeed, try again. Then quit. There's no use being a **** fool about it.
-- W.C. Fields
minotaur is offline   Reply With Quote
Old 06-14-2005, 04:34 PM   #7
Aquarium Advice Addict
 
Join Date: Oct 2004
Location: NJ
Posts: 2,111
I agree with the large(r) water change. If you change out 10% of your water and your trates started at 50 you're going to reduce them to 45. Well that's not much help. To get them to 10, for example, you'd have to do an 80% water change. If you want to go easiser on your inverts than that you could do a series of 3 40% water changes.
__________________
Phyllis

Join the NJ Reef Club Today! Saving the world's reefs one living room at a time!
MACNA XXI Atlantic City, NJ September 25-27, 2009
Phyl is offline   Reply With Quote
Old 06-14-2005, 04:48 PM   #8
Aquarium Advice Addict
 
Join Date: Dec 2003
Location: Nebraska, USA
Posts: 6,703
Well, 3gallons is about 10% of a 29gallon tank. That should lower nitrates by 10% assuming new water is 0ppm. That gives you 45ppm of nitrate...which would be hard to tell from 50ppm on any test kit I have seen.
Larger water change
__________________
Former advisor and planted tank geek...life's moved on though.
malkore is offline   Reply With Quote
Old 06-14-2005, 08:31 PM   #9
Aquarium Advice Activist
 
Join Date: Jan 2005
Location: West Virginia, USA
Posts: 107
I tested the tap water...no nitrates.

I did a 25% pwc (8 gallons) and nitrates are still at or near 50. (as someone stated earlier, it's kinda hard to tell after 40 or so) If i do a series of (3) 40% pwc, how far apart should i time the changes? Can I do them daily, or every other day?

ps...one of my new small crabs bit the dust this morning, but the Scarlet Cleaner was very happy about the gourmet breakfast...
__________________
If at first you don't succeed, try again. Then quit. There's no use being a **** fool about it.
-- W.C. Fields
minotaur is offline   Reply With Quote
Old 06-14-2005, 08:59 PM   #10
Aquarium Advice Addict
 
krap101's Avatar
 
Join Date: Feb 2004
Location: Roscoe, IL
Posts: 6,084
Send a message via AIM to krap101
maybe theres something dead in the water that keeps adding ammonia, but since its cycled it turns into nitrates?
__________________

__________________
~ Danny
krap101 is offline   Reply With Quote
Reply

Tags
nitrate, 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
Nitrate spike= big PWC or not? HappyHooligan Saltwater Fish Only & FOWLR 5 01-10-2010 07:38 AM
Nitrate Level Between PWC for FOWLER Boulder Saltwater Fish Only & FOWLR 17 08-21-2009 11:17 AM
when to do a pwc because of nitrate DRoy1124 Nano Reefs 2 07-06-2006 02:06 PM
Guideline for max nitrate level before pwc? gfink Freshwater & Brackish - General Discussion 1 01-04-2005 05:30 PM
kh need to be lowered; how to do it???? dogsby8 Freshwater & Brackish - Getting Started 10 08-27-2003 07:10 AM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 03:55 AM.


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