Disregard the link I first posted. The tiger shovel nose seems to be a tropical fish sold in fish stores, not caught in Tennessee
According to this, you probably have a flathead catfish, aka shovel head, et al…page 26 of the doc
https://www.tn.gov/content/dam/tn/twra/documents/fishing/anglersguide.pdf
Now check this out
https://www.in-fisherman.com/editorial/flathead-catfish-behavior/154069
In addition to Burns' insights, the observations of In-Fisherman editor Steve Hoffman add another perspective about the slothful flathead's propensity to lie on the bottom. Here's what Hoffman has observed about the *flatheads that resided in *In-Fisherman's aquarium:
"If left undisturbed, I've never seen flatheads suspend in the tank when the lights are on. If we were adding or removing other fish, or otherwise disturbing the tank, flatheads would rise up off the bottom and swim quick laps.
"When the lights were out, though, flatheads frequently swam through the middle of the tank or even just beneath the surface. I didn't spend enough time watching to gauge how much time they spent at mid-depths, but it seemed common when they were ready to feed.”
"It's also interesting that it took nearly an hour of darkness before they would rise off the bottom,
but as soon as the lights were turned on, they dropped immediately to the bottom."