Quarantine ..... Do you or don't you?

[whatcaneyedo]

I often dont quarentine fish although I believe that I should. Quite often when I add a new one my other fish get ick for a little while but then get over it. However I rarely buy new fish anymore. On average just two a year lately. My biggest problem has been from not quarantining coral and other inverts. I've introduced a lot of problems and parasites that way... so lately I've been trying to QT everything for at least two weeks.

My QT tank is just a bare 20gal with two powerheads, heater, hang on filter and T5 light. Whenever I use it I do 10% daily water changes by using water from my main system to keep the water in the two the same.