Originally Posted by
Bang Guy
http:///forum/post/3000949
Salifert test kits are very good.
In general the lower the Nitrate the better. A trace amount (<5ppm) is fine in my opinion.
I don't test for Nitrite. I really don't see the point. Once the tank has cycled it should always be zero. It's harmless at low levels but if it is not zero then there is a problem with your biologic filtration.
Salifert is good.
Fish only tanks can have some pretty high nitrate levels before the fish start to feel the effects...but I agree that in a reef it should be as close to 0 as possible.
I don't test for nitrite and ammonia very often. Nitrate, phosphate, pH, calcium, and alkalinity are the main ones I test for. I have all the tests for everything else, but I don't waste them since I know what the outcome is going to be anyway.
But for a new tank, ammonia and nitrite are very important to test for. +1 salifert.