Also, there are so many parasites which your new fish have been exposed to that I would urge you to also treat them with a broad spectrum antiparasite treatment. Some parasites will not make themselves known until even months after you have the fish and for them, mere quarantine is useless. (See Camallanus in IH for an example.)

And as I mentioned in a diary a week or two back, even that is not a foolproof system if only one treatment is given for parasites and the fish are carrying eggs of the parasite - which will often survive treatment and hatch later. I suppose a preventative treatment a week or two apart in quarantine would be better than what I did. Naturally I was in a hurry...and am paying for it.

Again that involves a lot of time, effort and money and I realize that none of us have enough of those.