When you all are talking about doing a 100% water change, (I'm sorry if this is a silly question), but does this mean you are removing everything from the tank and washing it all(ie wiping down the sides, removing and cleaning the gravel? If you mean this, what do I do about the live, farily large, heathy aponogeton plant and bulb(that I've seen the roots under the gravel about 3-4 inches away from the bulb? ) I have the 1.5 gallon tank, and would like to be able to just use a vacuum and drain/suck out most of the water, so that I leave my plant undisturbed and leave in the gravel on the slim chance this tank will cycle. Is that o.k.?