I had a customer come in the other day to give us 2 x 7" long tinfoil barbs. He said they were in an Eclipse 12 gallon tank. I laughed and asked why on earth would you get those for a 12 gallon. He replied that when he first bought the setup from Petsmart, the guy sold him the tank and told him he could keep 2 tinfoil barbs, 2 gouramis, an angelfish and a common pleco in there. He's learned a bit since the incident. The guy at Petsmart told him the age-old myth, "They'll only get as big as their tank.". I was like ya, they'll grow to be about the size of a 12 gallon aquarium, lol. It was funny, and sad all at the same time. The gouramis and Angel died, and the tinfoils are now doing fine in a 125 gallon tank. He left me with buying 4 Sarpae tetras and 3 cories.