I've got two of them a little over 2 years old. One is 16", and the other is 13". I plan on increasing the size of their tank soon. They are currently in a 75 gal. The biggest one eats around 5-8 1" shrimp every night. He likes to fight with my jur over them. My jur is just at the 15" mark so the lima is still larger lol. I really need to finish the 200 gal I'm building for them.
hmm.. cool info.. I always considered limas the little guys of the catfish world.. I have one at 12" something and judging from his non aggressive feeding he seems to have little plans to grow much more.. I would however like him to reach 18 or something..