I posted a while back ago asking about Microlift bacteria and Calcium additive, Im almost done w my weekly treatments. The treatments been working, my nitrites are down to .25 with 0 ammonia. Since I have a water softener, I have to add the microlift once a month (after the first month of weekly treatments) and the calcium after each water change. Its an 18w and the guy at store said it kills all my bacteria. Is he right? Its been off for almost a month