what is the fastest way i can cycle my tank again? a good fish store near me is having a sale and i wanna try to get some new fish for the tank and i dont wanna have to wait the 5 weeks to cycle. does that stuff from the store where it says it has the bacteria in a bottle and all you have to do is pour it in the tank for days and then it is cycled actually work? or can i ask for something from the fish store like something from the filters they use to add into mine. i did it the hard way last time. i changed the water constantly and that was a hassle