All I really know is.....
Shortly after I got them home in January, they crawled into a cave and built a wall infront of it.
I bought a bigger rock,both catfish made it their home. In late February, I lifted the rock to find fry. They looked alot like tadpoles. Less than a week later the fry started venturing out, with egg sacks still attached. Five days after that the fry were free swimming.
One of the parents was always underneath with the fry. The other would lay on the top of the rock, that the fry were under.
They both stay under that same rock now, unless it's feeding time.
The fry have grown rather quickly. Most of them are about 3 inches long now, and they are about 3 months old.
My catfish have eaten various frozen foods, flake and sinking wafers.
They are fairly inactive. Even at night.
The male is slightly smaller than the female.
The male is also darker in color than the female.
I have never seen them leave the bottom of the tank.
They are very strong. They come out and dig up all of my plants, and knock things over.
I hope some of my rambling helps.
If you need more, just let me know.
I have to shut my computer off now, we have a storm moving in.