I am good, how are you?
Did you ask what he ate in the store? I would give him some time, as even pred cats can be a bit upset after a change of home, and you should not compare them to the greedmonsters that RTCs and TSNs are. I do not remember this species in particular, but some catfish take some time until they start eating. The Lima cats I had last took over a week until they started to eat, and even longer to figure out what to do when fed that tank. I would also try to get him to eat fishfilet or better whole small freswater fish first. He is a wildcaught fish after all and needs to learn that pellets are edible aswell. And be patient, you can't force him and he will not starve anytime soon.
And on't worry about the temperature, 1 degree difference is not the world and easily falls into the inacuracy of equipmemt. The quality lf water is more important.
The pictures look great, no damage on the mouth which some brachyplastystomas are notorious for.
