I've always had good luck buying fish from other reefers that either breed them or just want to get rid of them.
I very rarely buy fish from lfs because it's usually a closed system and even though they're dosing copper, I can usually find one or two very diseased fish in another tank on the same system. Not only that, but there's a huge turnover and who knows what's coming in with what in/on their body.
Q: Do you feel comfortable buying fish from LFS' that have a closed system whether they dose copper or not?
Q: Is there a specific LFS that you've had great luck with?
Q: Do you feel comfortable ordering online, say liveaquaria.com or saltwaterfish.com?
Q: Is there a specific online company you've had great luck with?
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I know a quarantine tank is the best solution, but I'm willing to take chances, I'd just like to narrow 'it some.