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 vaccum 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!!!