min tank size for a walking catfish?

[freshwaterfishing]

do u have any tankmate in your tank

and how much room do u think they have in a 55 gal to 65 gla tank by there self

and how many year would they stay in a 55 gla to 65 gla tank

Here are a few pics of my tank now except a few changes the white convict is no longer in there R>I>P and the JD is now in another tank. The only fish that are in there now are my flordia gar,senical,claris cat,and a jewel chiclid.
They all get along and are stress free fish in a 90 gal.