Honestly... you know what is best... I still haven't got my quarantine tanks here yet... so I'll only order fish from Dan's again, before I get the quarantine tanks set up... so if you got them from a premium dealer, & they aren't a fish farm raised species... you are likely fine... but beware, I bought some fish recently from a "bread & butter" seller, & some of those fish arrived not looking very good... I added them to the tank, & got an outbreak of Ich... unfortunately the Yellow Axelrodi Rainbows in the tank didn't handle the Ich ( all got it ) & or the required procedure to get rid of it, & I lost all 4 of those fish... so the danger is real...