how long to leave a tank fallow

[LoJack]

I went 8 weeks and was good on re-introduction. A lot of people recommend 10 just to be safe, I mean you already waited 6 right ... whats two more to make sure.

I had one fish in my tank though, a longnose hawkfish that I just couldn't catch, and disassembly wasn't an option. He never showed even the slightest sign, and must have been immune ... because when I started adding fish 8 weeks later everything was good.

This was about 8 months ago ... the tank is restocked and doing well.