Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - 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 10-11-2017, 05:38 PM   #1
Aquarium Advice Regular
 
lukac123's Avatar
 
Join Date: Sep 2017
Posts: 95
High nitrates

So Iím nearing the end of the cycle. I did a 90% water change last night and my nitrates are still high. How do I get them down. My ammonia and nitrites are 0. No fish in the tank. When I did the water change I didnít vacuum the substrate. Should I do another water change and vacuum the substrate?
__________________

__________________
lukac123 is offline   Reply With Quote
Old 10-11-2017, 05:57 PM   #2
Aquarium Advice Addict
 
dalto's Avatar
 
Join Date: Jul 2006
Location: Texas
Posts: 2,104
How high?

What did you use to cycle the tank? If you used any kind of decaying matter you should thoroughly vacuum and remove it all. If you used ammonia then a 100% water change should be enough.
__________________

__________________
dalto is offline   Reply With Quote
Old 10-11-2017, 05:59 PM   #3
Aquarium Advice Regular
 
lukac123's Avatar
 
Join Date: Sep 2017
Posts: 95
I used raw shrimp and I donít have rocks I have sand. What would be the best way to throughly vacuum the sand.
__________________
lukac123 is offline   Reply With Quote
Old 10-11-2017, 05:59 PM   #4
Aquarium Advice Regular
 
lukac123's Avatar
 
Join Date: Sep 2017
Posts: 95
And they were about 90
__________________
lukac123 is offline   Reply With Quote
Old 10-13-2017, 06:44 AM   #5
Aquarium Advice Addict
 
Mebbid's Avatar

POTM Champion
 
Join Date: Mar 2013
Location: Michigan USA
Posts: 12,625
The best way to deal with high nitrates in a tank is a water change.

Assuming your tap water has 0ppm nitrates in it; a 50% water change will drop down your nitrates by half down to about to 45ppm. This is why it's generally recommended to do a 90% water change after completing a fishless cycle. Just be sure to avoid cleaning your filter and your cycle will be fine.
__________________
"The simplest explanation for some phenomenon is more likely to be accurate than more complicated explanations." -Occam's razor
Mebbid is offline   Reply With Quote
Old 10-13-2017, 10:31 AM   #6
Aquarium Advice Addict
 
BBradbury's Avatar
 
Join Date: May 2011
Posts: 5,011
Nitrate Level

Quote:
Originally Posted by lukac123 View Post
So Iím nearing the end of the cycle. I did a 90% water change last night and my nitrates are still high. How do I get them down. My ammonia and nitrites are 0. No fish in the tank. When I did the water change I didnít vacuum the substrate. Should I do another water change and vacuum the substrate?
Hello luk...

Nitrate is the end of the Nitrogen Cycle, so for this form of nitrogen to be lethal to fish, it has to be in the 50 parts per million range and remain there for several days. Ideally, you want to keep the level around 25 ppm.

Most tap water has some level of nitrate. To lower it, use a nitrate reducing filter medium like the products from Acurel and HBH. Add some floating plants like Anacharis, Hornwort and Water sprite. I immerse the roots of the Chinese evergreen in all my tanks. This works better than anything I've used. The plant roots will significantly reduce nitrates in the tank water.

Keep the water changed. I change half or more every week to keep the chemistry steady.

B
__________________

__________________
"Fear not, my young apprentice. Just change the tank water."
BBradbury is offline   Reply With Quote
Reply

Tags
ate, high nitrate, high nitrates, nitrate, nitrates

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
High Nitrates And the Best way to lower Nitrates Freshwater & Brackish - General Discussion 11 03-10-2019 05:29 PM
Cycling help - High nitrates, high pH jsnuffaluff Freshwater & Brackish - Getting Started 6 03-18-2015 11:52 PM
Are Nitrates Good or Bad? What are Nitrates? munoza Freshwater & Brackish - General Discussion 4 12-18-2013 04:06 PM
cycling my tank, how high is too high for nitrates? boojumsnark25 Freshwater & Brackish - Getting Started 2 01-26-2007 09:02 AM
High Ca and High Alk and HIGH pH! dansemacabre Saltwater Reef Aquaria 20 07-07-2004 09:35 PM







» Photo Contest Winners







All times are GMT -4. The time now is 07:42 PM.


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