SimonL;4986855; said:It is your evidence, the burden of proving it is on you. If it's in a middle school textbook, you should be able to easily find it online and give me a link.
See, if I tell you I have a million gallon fish tank, and you say you don't believe me...is it up to you to prove I don't?
And you're still not answering my question...why isn't it common advice then?
Really? So you're saying that it's not "needed"? Why not, it would be fantastically beneficial for your fish. Fish grow much better in water with virtually no No3
I put up a poll in the set up and filtration to see who has done large or who does frequent large water changes so there is no more useless arguing.