Years reefing: 8
Tanks established: 5
Most expensive fish purchased: $45 Fathead Anthias
Longest quarentee period: 0 days
Fish lost due to sickness: 0
Call me lucky, foolish but I only buy healthy looking fish that eat for me in the LFS and I've never had a problem. Honestly, if I had a huge tank with lots of fish or with very expensive fish, I would indeed QT them. I don't think mandatory, mutli-week QT of chromis, clowns, and other cheap and robust fish is necessary if you learn how to visually identify healthy fish. Learn the species before you buy, learn how to identify healthy fish, quickly (about 15min) acclimate to salinity and temperature and then transfer the fish with no water from the LFS to your DT. YMMV.