First let me start by asking how fragile are rummy nose tetras? I have a 29 gallon all set up and ready so I wanted to put some rummys in it in which they assured me would be fine for the first fish. I got seven and on the way home they were pale naturally. The moment I put the bag to float they all started laying on the side, I thought maybe the new filter electrocuted them. I returned both the fish and filter, exchanging the remains for different rummys. I drip acclimated them, a couple of them were acting funky, when I put them in the aquarium they all died. I put a couple from my feeder tank in there, and they are doing swimmingly. I did notice there guild became quite red before dying. Now I don't want to go back to the pet store with this news because the first time they treated me like an idiot, so I don't know what to do.