From YT:
WilliamZenger: My foot long ARTC stays in his hollow log all day, coming out to snatch a nightcrawler that I drop in for him. It's a shame, since they are a beautiful catfish. My black devil cat is the complete opposite. He stays on the side of the tank where I sit,in my chair eye level to him. He is completely unphased by me and will follow my hand around the tank. IMHO, there is more variation with black devils, in terms of whether they hide ot not. Almost every ARTC that I've seen is ALWAYS trying to hide.
TBTB: Thank you for this useful input. It made me think of all the wyckiis we kept, about 6 or so, and you are right, some of them hid all the time while others didn't claim any particular hides and stayed often in the open or semi-open. Strange. The prior ARTC we had that grew to 3ft never had an opportunity to hide but now that I think back it might have been less than comfortable in a bare tank. The current two ARTC hide always given an opportunity.