ok my petsmart has been getting LOADS of shipments of bettas! all kinds too! (i can only recognize VT and CT) anyways i am getting some $$$$ (yay)(always a good thing) and i am gunna buy one of the one gallon tank sold by hawkeye aquariums! and they have built in undergroud filters (which saves some time on cleaning) but i have to cycle the tank 1st...how long should i cycle a one or two gallon?