Okay, then I'll assume that then. My LFS just got him in on thursday, and I bought him on friday. I can imagine it was stressful for him to be in so many places within a few days. I acclimated him for over an hour, floating the bag in the tank, pouring in 1/4 of a cup of water into the bag every ten minutes. I did a 50% WC the day I got him, so the water was fresh. Poor guy, I wish he could have made it through.
After going back there today I got a neon blue goby. I thought it would be a good idea to have a fish in there to keep the bacteria levels up, and they didn't have any firefish. So far, he is happily swimming around. Hoping for no more fish losses. He is so tiny, I don't even see how he makes an impact on the bioload. I'm just hoping this wasn't a bad decision since there are no other fish for him to clean, but I've read on many sites online they accept regular food as well.