RIP Turtle1, Long Live Turtle2

Son's goldfish, Turtle, was dead when we got up this morning. So we made a trip to the pet store only to find that they had no goldfish. I asked the lady working in the fish department what the next cheapest fish was, and she proceeded to tell me that I should not put another fish in my tank because it was too small. She basically refused to sell me a fish to put in the same tank. Son was not happy about not getting another silver fish, but was ok with blue Beta instead. So now we have 2 tanks, each with one fish and all seems well with fishy world...for now.