nitrites off the chart - Tropical Fish Keeping - Aquarium fish care and resources
LinkBack Thread Tools
post #1 of 4 Old 11-25-2012, 03:57 PM Thread Starter
New Member
nitrites off the chart

tank is about 6 weeks old. amonia and nitrates are zero (or close to it) but nitrates are off of the chart. can it still be cycling this long or is it a problem? (i just got test kit so i wasnt able to follow the cycle)
Posted via Mobile Device
lee420 is offline  
Sponsored Links
post #2 of 4 Old 11-25-2012, 04:01 PM
New Member
Check for a dead fish (inside a decoration or underneath a rock), this happened to us once and it ended up being a Redtail Shark that had crawled inside a resin log and died. Other than that, clean your substrate really well, see if your filter is really dirty (sometimes our high nitrates are a sign that our canister filter is in need of cleaning) If your tank is overstocked like ours are, I would do a 50% water change and stop feeding your fish for a couple of days. Should bring the levels down. You may just be overfeeding, we were.
lakemalawifish is offline  
post #3 of 4 Old 11-25-2012, 04:32 PM Thread Starter
New Member
that sounds about right. i didnt know about cycling at first and i overstocked and and some died, probably left from that

thank you

also, is it bad to do big water changes?

Last edited by lee420; 11-25-2012 at 04:35 PM.
lee420 is offline  
post #4 of 4 Old 11-25-2012, 04:52 PM
New Member
Large water changes really depend on the tank/fish. Our Lake Tanganyika fish don't like ph swings so not a good idea for them. But I have done 50% WC on all of our other tanks with no problem whenever the nitrates were high. I've been told that up to 100% water replacement within a weeks time is ok. We tried API NitraZorb and Seachem Purigen in our 220 and 120 and it brought the nitrates down, but it was not immediate. Decided not to continue using the products after recharging them a few times because it was a lot of trouble. We are looking into Seachem Matrix to lower nitrates because all of our tanks are over filtrated with lots of water movement (spray bars, power heads, etc.) This swift moving water does not allow areas of "still water" for the anaerobic bacteria that is necessary to eliminate nitrates to grow. Matrix is a highly porous media, basically like a rock with lots of tiny holes in it I think. I have done so much research and this product seems to make more sense to me. We can't do plants, our fish would tear them up. Also, if you use Prime water conditioner and de-chlorinator, the Prime will neutralize the Nitrates so they are less toxic to the fish. Dose Prime equivalent to the entire water mass of your tank when you do a water change, regardless of how much water you remove/replace.

Last edited by lakemalawifish; 11-25-2012 at 04:55 PM.
lakemalawifish is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
CO2 chart Boscobear Beginner Planted Aquarium 17 03-29-2012 08:04 PM
gh / kh off the chart purproadking Freshwater and Tropical Fish 1 05-31-2011 02:35 AM
Lighting Chart herefishy Saltwater Aquarium Equipment 5 04-08-2008 03:22 PM
chart tangy Saltwater Fish 6 05-22-2007 01:26 AM

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 On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome