I use no flour when I fry catfish, as I prefer it without. Red is a not-so-well-ground bit o' pepper powder. Used cayenne, aji panca, and fatalii. Also sea salt, garlic powder, oregano, cilantro, allspice, thyme, cumin, paprika..... can't remember if anything else. I kind of just get happy in my spice cabinet when I start seasoning things.