LOL, yeah, I guess I've proven that. I've had that fish through 2 moves and this is his second tank.
One of the LFS's said that a "bad batch" was a possibility. That since they were the last remaining of their batch, they had been in the other store a while and might have been stressed for some time, just waiting for a small nudge to push them over the edge. The transfer to a new tank might just have done it.
I'm hoping it's that and NOT internal parasites.
I hope I'm a little smarter now, I bought a slightly larger quarantine tank, have it all set up and cycling, preparing perhaps for another round of purchases in a month.
Here's a dumb question. If you aren't supposed to add more than 2-3 fish to a tank at a time (to give it time to absorb the load) but you should buy schooling fish in 6-8+ (so they feel at ease), which of these guidelines should you follow? Or do small, schooling fish represent such a small load that 12 of them is equivalent to 2-3 "normal" sized fish.
Thx!