OMG guys... research... better yet alot of you have been cruising the Catfish forums for awhile Lima Shovelnose gets to an average size of 18" in home aquaria, TSN's will Blow them away and depending on the sub speicies can reach 6+ feet in size, There are a few other types of Shovelnose as well Ariopsis paucus as an example getsto around 2 feet as well. Hemisorubim platyrhynchos is another small one as well though... comeon and get some research going guys 