I had the same problem and my tank is over a year old, it happends, just do your regular water changes and tank cleaning and it will go away when the tank balances out.
I have no Idea why these guys just do not answer your question, you asked a simple question... and the answer YES, and you do not have to mix vinger in it....
[ April 17, 2002: Message edited by: Tony33 ]</p>