I think the biggest mistake most reefers make, as it pertains to fish, is not quarantining. Indeed, I have made this mistake as well.
This is one area our community needs to improve. BRS and quarantine experts need to develop an agreed upon qt method/methods that includes recommended products and procedures. I know there is some info here on R2R, but there seems to be contradictory information. I constantly here about how everyone should quarantine their fish, but they never direct anyone to the proper way to accomplish a qt procedure. That is even the case in this video. I consider myself an experienced reefer with about 15 years under my belt. I keep an acropora dominant system and I don't even feel confident with fish quarantine. If I don't have a solid understanding of quarantine methods, I would bet most people don't either. That is a shame because quarantining fish should be one of the first things mastered by any new reefer.
There is confusion with the proper copper to use, the levels needed to achieve the goal, and how long to keep fish at that level. In addition, exactly what other products should we use to eliminate other pests, like Prozipro?
A complete step by step guide for quarantining fish would be the most important and valuable piece of information for our hobby and the fish we keep. Why has this information taken so long to develop?
If you doubt my skepticism about quarantine confusion, just Google it and view a few different threads. They all offer different advise, products, levels, and time periods. Who is right? Who should I trust?
Sorry about the rant. I try to be positive most of the time. How many others would quarantine if there was a trusted source that provided a step by step guide?