Wash the catfish fillets and pat completely dry with paper towels.
Grind the wheat flakes cereal and combine with paprika, cayenne pepper, black pepper, white pepper, thyme, salt, onion powder, and garlic powder in a bowl.
Pour the seasoning mixture onto a piece of foil or wax paper.
Dip each fillet into the seasoning mixture, coating both sides evenly.
Heat oil in a heavy cast iron frying pan over medium-high heat.
Fry the seasoned fillets for 2 minutes on each side until golden brown and crispy.
Transfer fillets to a plate lined with paper towels, cover with another paper towel, and pat to remove excess oil.