Does cod fish have scale

Just go on YouTube and look up the fish your looking for and put scaling after it. Ex. Whitings scaling. It'll show people scaling the fish while there filleting them. This is what im doing at the moment! For religion reasons. If you do this you'll find that whitings fish is clean, sea bass, salmon, Atlantic salmon, herring, mullet, snapper, tilapia

( my fav), and trout are clean fish. I'll make a YouTube list and give you the link. And most of these fish are on market.