I'm realizing I did a lot of things wrong, very wrong. Now I'm trying to fix things, and I need your help. First off, I have 2 balloon mollies living in a 2 gallon tank. I know it's not big enough, I plan on upgrading soon. I didn't realize cycling the tank was of utmost importance. I was recommended to use tetra safestart to help cycle the tank. Can I leave my fish in their tank while I run the cycle? How long does the cycle take? I don't have a quarantine tank for them to live in while I cycle the tank. Is it imperative that I use one? Or can mollies withstand the change in water quality during the cycle?