I picked up all the livestock as I was coming back home from a trip to my family in southern Indiana. They all came back the roughly 4 hours to Lansing with me. I'll try to get a picture of the tank up tomorrow. I can't really afford a refractometer though with that swap coming up, maybe they'll have some cheaper ones there (or win one if there's one in the raffle). So far, it sounds like maybe it has to do with salinity. I would tend to disagree mainly because the shrimp and snails are perfectly fine, and I thought that they were more sensitive to changes like salinity and nitrates than fish were. The reason I was wanting that company to respond wasn't entirely for anything regarding a refund (though part of me thought they might offer something). It was more because they had a second powder brown the day I was there, and I wanted to know if it was doing ok.