I set it up Tuesday this week with live rock + live sand straight from a lfs. Also dosed microbacter7 and dr.tim's one and only. Water test shows no ammonia but also low/no nitrates. I was told by one lfs to dose ammonia to cycle, but my other lfs said its time to add a hardy fish like a clownfish. I also have some hitchhiker feather dusters (17 small ones) that I would like to keep alive and I was told dosing ammonia will kill them. What do I do? Please help