Ornate Article in Aquarium Fish International..odd information??

[JeffLeMay]

i saw an article in there a couple of months ago dealing with different types of knife fish, and they said that to "maximize the growth potential" of a clown knife you should keep it in a 55 gallon tank...for a fish that can potentially get over three feet long, seems like bad information. i like the magazine a lot, but for the real deal info i just come here...people seem to know their stuff a little better to say the least