In the south, we fry everything. I like to use a dry batter. Xfine ground corn meal with spices thrown in ,garlic powder,Onion Powder, S&P,etc.
Then add some corn starch, bout a tablespoon for every cup of batter you make. Blend that well
crack an egg in a bowl and mix with 1/4 cup of water. soak filets in this, then coat with dry mix. I use a gallon ziplock. Put dry mix in the bag, then drop soaked pieces in,seal and shake.
Hardest part of frying is keeping oil temp steady. I usually let it get to 365*-370*, so when u drop the fish in, it can drop and steady out at 345*-350*.
I use peanut oil to deep fry,avacado oil for pan frying.