It's fun seeing spunky juvies in a tank begging for food like starving maniacs Rach! And the fins....we're not sure why, but they suffered a bit of ammonia burn. Maybe the high temperatures had something to do with it, but the time from opening the bag to plopping into the tank was no more than 15-seconds. But once the air hit that shipping water...sheesh. But they are all over that. Few days and the fins will be back to normal. They actually like their water changes! And that's a good thing!