Ok I have a question that may end up with a lot of conflicting opinions. Do all those products that claim to have "live bacteria" in a bottle acctually contain live bacteria? I have always belived them all to be junk and constantly talk people out of them at work. I dont see how any helpful bacteria can live in a bottle with no oxygen or waterflow to keep it alive, and yet I constantly see people post on here that they start thier tanks with cycle and other products. I'm just hoping someone can explain this to me, cause I've set up a lot of tanks of the last 10 years and never used anything and never had a problem.