The females are a bit better. I came home from work and hubby said they stayed in same positions most of the day (one at top of her tank, the other at the bottom of her tank), but he did notice them move more. I went to peek at them and they were both swimming. They stopped when they saw me, so I continued to do some things and looked again and they were moving some. I think they will get better. None of the fish show outward signs of disease. No discoloration (actually their coloring is getting better, another good sign, I think)...but no red spots or anything like that.., no fuzzy or white spots, no open sores, not bloated, nothing inflamed or torn. The male (that has been fine all along) actually made a little bubble nest
So, the females aren't all better, but are showing signs of improvement. The seller seems genuinely concerned. She actually sent me her cell phone number and wants me to call her so we can decide what to do. I agree that it seems odd that this is just from shipping stress...esp since the one male is perfectly fine, but the seller seems very honest so I think that if the cause of their distress happened before shipping, then she just missed it by accident. (or maybe she's just trying to cover her butt, I don't know! LOL) The only thing I can possibly think, is the box they were shipped in was not labeled "Live fish" like all the other fish shipments I've received. Maybe the box got handled roughly while it was in shipment.
Ok, I just peeked over where the tanks are and both females were swimming again, I went over there and they both came to the front of their tanks to look at me

More good signs!