I ordered cardinal tetras and they all arrived nicely packed and healthy. They came in a box lined with Styrofoam with a heat pack wrapped around the bag. The 9 fish I ordered acclimated to my tank quickly and are doing well. I like that the fish are only shipped when the weather is warm enough & when they can be delivered next day, which is clearly stated when ordering. My fish shipped out on a Tuesday and arrived Wednesday morning. Overall I'm happy and I would buy again.