3mths old tank is not stable yet bro QT the fish one moth or more (qt tank bigger is better 3ft up if possible with some mature live rocks in qt tank) let the fish do the fasting 4 a few days or more. add one fish at a time to the reef tank n better to do the drpn procs.. do not do any medecation trust me bro fasting will Detox Body n Recharge Health Fasting is the Greatest Remedy i feed my fish only twice aweek they grow slowly but getting stronger n healthr each day less is always better than more So.. let the fasting do the taking.. Good Luck.