melafix is melaluca oil, all natral brother, just fish & corals dont like the taste, & it might sting abit just like when we have a cut & put it on. having said that, shock of treatment can always inflame the issue when treating, & i express my sympathy over the loss.
Carbon & skimming will rid the system.Depending on how efficent your equiptment is dictates its removal rate. Dont worry, its not going to do any damage till its out. As mentioned its like a real bad after taste. Next sugestion is to do all your dosing in a dedicated
QT, & only leave the most extreme cases to the
DT