Why is everyone so obsessed with Ich, there are worse things to worry about then ich. If you are in a position to check a fish out closely before buying then thankfully there is a 99% chance you will never come across those worse things.
I am not in that position, everything I get is mailorder and after once losing half my fish to marine velvet I am not willing to chance going through it again (even if I could check a fish out before buying)
I have also found quarantining a fish easier on the fish then being dumped straight off into the display tank. Fish take less time to get used to eating prepared foods and are quicker to get used to my presence..... just my experience anyway and I have a regal angel, an achilles tang, 2 potters angels and a copperband butterfly
