Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - General Discussion
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 03-03-2019, 12:20 PM   #1
Aquarium Advice Apprentice
 
Join Date: Sep 2018
Posts: 19
Nitrate Levels

Hi all,

I have 3 fantail goldfish in my 180 litre tank and all levels are good, but I always have nitrates of between 20-40 ppm.

Is this acceptable/normal for a goldfish tank?

Thanks.
__________________

__________________
Dodger is offline   Reply With Quote
Old 03-03-2019, 12:43 PM   #2
Aquarium Advice Addict
 
BBradbury's Avatar
 
Join Date: May 2011
Posts: 4,940
Water Chemistry

Quote:
Originally Posted by Dodger View Post
Hi all,

I have 3 fantail goldfish in my 180 litre tank and all levels are good, but I always have nitrates of between 20-40 ppm.

Is this acceptable/normal for a goldfish tank?

Thanks.
Hello Dodger...

Nitrates are at the end of the nitrogen cycle. So, this form of nitrogen isn't a problem for healthy, hardy fish. Goldfish are exceptionally hardy. A nitrate level of 40 ppm isn't bad. If you remove and replace most of the tank water every week, the water chemistry will remain steady and your fish will be fine.

B
__________________

__________________
"Fear not, my young apprentice. Just change the tank water."
BBradbury is offline   Reply With Quote
Old 03-03-2019, 02:34 PM   #3
Aquarium Advice Apprentice
 
Join Date: Sep 2018
Posts: 19
Thanks B,

Yea they are all very healthy, I am changing about 1/3 of the tank water every week, may be I should do at least half or maybe more?
__________________
Dodger is offline   Reply With Quote
Old 03-03-2019, 06:55 PM   #4
Aquarium Advice FINatic
 
Join Date: Jun 2018
Location: mississippi
Posts: 758
If you are getting 20-40 then you are right where you want to be. If the tank and fish are healthy I wouldn't change a thing.
__________________
goatnad is offline   Reply With Quote
Old 03-03-2019, 06:59 PM   #5
Aquarium Advice Apprentice
 
Join Date: Sep 2018
Posts: 19
Thanks, everything else is spot on, so wanted to make sure if I needed to do anything or not about the nitrates.
__________________
Dodger is offline   Reply With Quote
Old 03-04-2019, 03:17 AM   #6
Aquarium Advice Addict
 
King Fisher's Avatar
 
Join Date: Jan 2018
Location: Nevada
Posts: 3,206
Probably wouldn't hurt to bump up your water change to around 50%
__________________
King Fisher is offline   Reply With Quote
Old 03-04-2019, 09:11 AM   #7
Aquarium Advice Apprentice
 
Join Date: Sep 2018
Posts: 19
Ok will do, thanks for advice.
__________________
Dodger is offline   Reply With Quote
Old 03-08-2019, 05:44 AM   #8
Aquarium Advice Apprentice
 
Join Date: Mar 2019
Location: Los Angeles
Posts: 13
Doesn’t a big water change affect the bio bacteria?
__________________
josediamond1027 is offline   Reply With Quote
Old 03-08-2019, 06:02 AM   #9
Aquarium Advice Apprentice
 
Join Date: Sep 2018
Posts: 19
I thought that was all attached to the filter housing and gravel etc.
__________________
Dodger is offline   Reply With Quote
Old 03-08-2019, 06:08 AM   #10
Aquarium Advice Apprentice
 
Join Date: Mar 2019
Location: Los Angeles
Posts: 13
Have those 50% pwc affected your water parameters negatively?
__________________
josediamond1027 is offline   Reply With Quote
Old 03-08-2019, 06:25 AM   #11
Aquarium Advice Apprentice
 
Join Date: Sep 2018
Posts: 19
At the moment I am doing about a 1/3 water change per week and water parameters are unaffected.

I do a 50% water change usually once a month, which I might start doing every week.

I have read that some people do 50% or even 90% water changes each week for a goldfish aquarium.
__________________
Dodger is offline   Reply With Quote
Old 03-08-2019, 10:26 AM   #12
Aquarium Advice FINatic
 
Join Date: Mar 2010
Posts: 754
BB are *attached* to pretty much everything but the water LEAST of all - gravel, ornaments, your mechanical filter & it's media the most. Large water changes will dilute dilute any unwanted/unhealthy substances in the water (**assuming** they're done properly with dechlorinator, Prime etc). Hubby has an overstocked 125g and is a chronic overfeeder("I gave them more because there's so many and they are acting SO hungry") and I try change out 50-75 at least once a week, twice if I can. He still loses the odd fish here and there but the Kribs, Swords & Platys are breeding so I figure I am doing something right
__________________
earhtmother is online now   Reply With Quote
Old 03-09-2019, 02:30 AM   #13
Aquarium Advice Addict
 
King Fisher's Avatar
 
Join Date: Jan 2018
Location: Nevada
Posts: 3,206
Quote:
Originally Posted by josediamond1027 View Post
Have those 50% pwc affected your water parameters negatively?
50% water changes doesn't affect water parameters negatively.
__________________

__________________
King Fisher is offline   Reply With Quote
Reply

Tags
ate, level, nitrate, nitrate level

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
I just measured the levels and would like some opinions on the levels. Camogirl28 Freshwater & Brackish - Getting Started 45 12-28-2013 05:52 PM
How to Lower Calcium Levels? What can High Levels Cause? xxnonamexx Saltwater Reef Aquaria 3 10-11-2005 04:34 PM
My levels??? Nitrate?? HOLLIEO Freshwater & Brackish - General Discussion 9 07-10-2003 06:44 PM
Constant Nitrate levels tbates Saltwater & Reef - Getting Started 9 05-12-2003 12:54 PM
How do you check nitrate levels in your tank? covergerl Freshwater & Brackish - General Discussion 5 12-18-2002 01:45 PM







» Photo Contest Winners







All times are GMT -4. The time now is 02:13 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.