me again ;D I was at the local pet store yesterday and I mentioned that I vaccumed the gravel as I was doing my first water change ant the guy told me I did the wrong thing and "set my cycle back at least a few days"...is this true? from what I can put togeather from other posts I should vacuum the gravel with each weekly water change while cycling and even after cycle is done and tank is stable. could someone set me straight on this please? I appolagize if I am repeating questions from other posts, but I am a little confused and want to be doing things right...thanks all!!!