I was at Petsmart today getting crickets for my firebelly toads. As I wait for the person to count out my crickets I look at the nearby fish and I see that they have albino channel cats and that they are listed to get to 27" long. I ask "Out of curiousity, how big of a tank do you need for a fish that gets to be 27" long?" The answer: "at least a 55 gallon b/c it is 4 feet long." I said "Yes, but it is only 12 inches wide!?" No good response other than "bigger than 55 is better". Poor channel cat that ends up in a 55 gallon. If it survived it wouldn't even be able to turn around.