Originally Posted by Hatchetfishhayward
I too am having the same problem,except on a smaller scale. I have just got back into the hobby after about ten years and I never recall having this many problems with Nitrates back then. I am doing water changes in my 32 Gallon tank sometimes twice a day. I like you, tested my tapwater and found nothing wrong there. I guess we just have to be patient tell the condition stabilizes. I am just worried about my tank dwellers,sometimes I can't sleep unless I do a water change. I feel that I should have enough bacteria in the tank by now for it to stabalize. I,m hoping the test results over the next few day will show it finally droping to safe levels. Everything else in the tank seens to be within the proper limits. Hope your luck changes
Let me know how it goes.
Originally Posted by walkytalky
Thanks, I think after many months of nitrite problems, things are looking up. I just simply left the tank alone, no water changes, nothing for about 2 weeks. I just went to my LFS and its coming way down. Almost normal or should say close to zero nitrites. But boy do I have alot of hair algie. No problem, someone will eat it I hope.
For clarification, these are 2 entirely different problems.
Nitrates are generally due to an established biological filter which is breaking down the nitrite into Nitrate. Eventually denitrifying bacteria in the live rock and sand (at a proper depth) will begin to break down Nitrate, with an end result of Nitrogen gas, which leaves the system naturally without harm.
Nitrites are an indication that to much livestock or other nutrients were added to the tank in the early stages, without allowing the biological filter time to settle in. This is more commonly a freshwater problem, because in marine tanks the live rock (if cured) will have all the necessary bacteria needed to break down ammonia and nitrite. The reason for allowing a maturing time is not to establish a biofilter, it is to establish a healthy supply of microfauna (copepods, amphipods, etc).