I thought that they might be infertile. I said something to the worker and that is why he kept taking it out to look at. I bought them today and they recived the shipment today.
I hope they aren't for your sake. And hopefully they'll give a refund to you if they are infertile. They can get their money back from the supplier too, so it should work out. I would call the pet store tomorrow and work out that process just in case. Six sharks at one time would be quite the adventure. Good luck!!