I've purchased Wetspot Red Tiger juvies before. This was about 1.5 years ago. They were a tough group of juvies to raise. I had to do a 2 week treatment for Ich when they came in. They also were extremely picky eaters. Only 2 of the batch of 5 or 6 that I got made it.
Just my 2 cents.
There's a thread elsewhere on this forum where others have also listed similar experiences regarding the juvies from Wetspot.
I know the batch you are speaking of. The last 3-4 batches of Red Tigers have not had the same problem. The bad batch was from Asia, whereas the recent ones have been coming from Colombia, like the larger parents. They could technically be considered "wild caught," but they were bred in a pond in Colombia so F1 seems to be a better name. There hasn't been an issue with them, other than there don't seem to be enough to satisfy demand!