You said fish glue is flower glue, right? It's also called fish maw in the north.

If that's what this is, yes, it's in the belly of the fish, and it's actually the dried product of the swim bladder of the fish, uh, mainly of the sea fish.

The highest quality is that of the minnow

Also, please note that in the south, Guangdong, Guangxi, Fujian, Hainan and so on, the fish belly does not necessarily refer to the flower glue, but may also refer to the fish buckle, that is, the stomach of the fish, mainly groupers snappers redfish and such sea fish stomach.