Thanks everyone. I lost about 20 more today. They seem to have red areas on their belly. I do have a water test kit. I will check it and see. I did have some that had light spots of fungus on them, I took them out. Maybe the seller does not have good stock?
I use a 15 gallon tub with oxygen pumped in with and a high volume air pump putting air in. They are in the tub about 2 hours traveling.
