Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Getting Started
Click Here to Login

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 01-25-2007, 07:03 PM   #1
Aquarium Advice Regular
Join Date: Jan 2007
Posts: 66
cycling my tank, how high is too high for nitrates?

Hi everyone, I'm fishless cycling a 55 gallon tank. (Thank you so much to everyone on this board, I had no idea what a fishless cycle was, and I definitely didn't know that a fishy cycle hurt the fish...I'm so glad i found out!)

Anyways, on sunday I added my ammonia, and was too impatient to wait an hour before adding any more. To make a long story short, when I got home 4 hours later, there was 8-9ppm ammonia. I figured I wasn't in a huge hurry, so I'd just leave that much in and make a massive bioload. Seeded the tank with a filter pad and gravel from a 10 gallon. Today (Thursday), when I got home from school I tested, and got these results...

Ammonia - 4
Nitrite - 2
Nitrate - somewhere around 40

it's gonna be a pretty quick cycle, eh?

I know that the nitrate is going to skyrocket even more. I think I remember reading somewhere that too much nitrate can harm the cycle process. Any truth to this? Obviously, I'm going to make water changes before adding livestock, but do I need to worry about getting rid of some of those nitrates while the tank is empty? Thanks.

Side note...I was never one for aquarium castles...much too cliche for me...but I was in the LFS and I found the Age of Magic castle set by Penn Plax...two pieces, in total 115 bucks...I'll definitely post a pic of it when i have it in there, if you haven't seen it before, it's unbelievable!

boojumsnark25 is offline   Reply With Quote
Old 01-25-2007, 09:53 PM   #2
Aquarium Advice Addict
SparKy697's Avatar
Join Date: Nov 2006
Location: Northwest Indiana
Posts: 1,495
As I understand it, nitrate level should not matter to a tank that has nothing living in it but bacteria. However, you are reaching the level where it will be very difficult to tell if there is an actual change in nitrates. A water change should not hurt you as long as you use something like Prime to dechlorinate the water you are adding back into the tank. This should help bring your nitrates down in the scale where you can watch for change.

I think you will be the envy of the board with a cycle that is going so fast. Congratulations!
"...but the guy at the LFS said I needed it!"
SparKy697 is offline   Reply With Quote
Old 01-26-2007, 09:02 AM   #3
Aquarium Advice Addict
7Enigma's Avatar
Join Date: Dec 2005
Location: Havertown, PA
Posts: 2,913
I don't think you have any reason to do a PWC. Both your ammonia and nitrIte levels are in perfectly readable ranges, and nitrAtes are inaccurate for cycling purposes. Your 40ppm nitrAte value doesn't make much sense unless you have nitrAte in your tap water. Most likely its just difficult to tell the difference between 20 and 80ppm (at least for me it is).

All that's important is that your ammonia and nitrIte levels are zero, then redose to 2ppm or so and monitor how long to get to zero again. Then you can do a HUGE PWC to get the nitrAte levels down and stock your fish.

Again I really see no reason to do anything now but wait. And your cycle is ROCKING along. Your results are telling me that both your ammonia to nitrIte and your nitrIte to nitrAte (slower replication) are both in good numbers. Keep an eye on your ammonia and redose to 2ppm or so when you get to zero (probably close to zero by the time you read this).

Congrats on a very good cycle.
Main (20g) - A throng of guppy and platy, Pressurized CO2, Ferts, All Live Plants (Very old pic, new one forthcoming)
7Enigma is offline   Reply With Quote

cycling, nitrates, tan

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
tank cycling progress update... kinda getting there... but ammonia's still high xyyz Freshwater & Brackish - General Discussion 2 07-20-2008 11:56 PM
high nitrite ammonia and nitrates 4yold tank ! Mghslowell Saltwater Reef Aquaria 4 03-04-2006 08:47 AM
New QT tank w/ high nitrates BDAWG Saltwater & Reef - Getting Started 4 02-17-2005 02:34 PM
Nitrates too high in a planted tank jibboo Freshwater & Brackish - Planted Tanks 16 12-29-2004 11:01 PM
cycling tank, high nitrite force of habit Saltwater & Reef - Getting Started 10 11-01-2003 11:47 AM

» Photo Contest Winners

All times are GMT -4. The time now is 02:09 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.