Hi, I have a juvie (4-5in) tandanus tandanus catfish in a 2ft 20g grow out tank. I am in the process of getting materials together to make him a 4x2x2ft (over 100g) tank for him. In the meantime he will probably outgrow the 2footer, so ill put him in a medium sized pond 'till I finish the tank. Anyone here ever owned one? they are great fish Ive had mine about 2 weeks hes already grown nearly an inch or more and is feeding out of the palm of my hand. He's an awesome little guy. cheers