A quick update. Heidi, I think you might be right about the marinade not being able to penetrate. It makes sense, seeing as how fish are... you know... waterproof. On the other hand, catfish respirate through their skin... Anyway, I really want to get the flavor into the meat, so I decided to cut slices into flesh and pour a mixture over the fish and into the crevices. I went with an Asian theme - coconut milk, peanut butter, lime juice, lots of herbs, and plenty of salt to aid in penetration, and three types of spice, hoping capsaicin manages to sink in one way or another. Here are some pi