Fish With no Scales

Are there any fish that are kosher that a consumer might have that will not have scales on them? Yeah, there are definitely fish that drop their scales when they come out of the water. There are some that do it in [music] more dramatic ways and some that do it in less dramatic ways. For example, if you go fishing for sailfish, apparently the scales fly off in very dramatic manner. Seen pictures of it [music] and I've heard descriptions, but when sailfish are caught and they're being pulled out of the water, part of the fight includes the fish shedding its scales in every direction. In the more practical way, you're not likely to find sailfish in a supermarket, but [music] you are more likely to find something like a mackerel or a herring. And those are also fish that would potentially [music] drop their scales when they come out of the water. And that creates a problem cuz the consumer would want to buy a herring >> [music] >> or a mackerel would have to find a scale on it or recognize the fish [music] using TSA.