Maggot

Graveyards swap the usual worms out for these, and a graveyard is something you can build yourself by stacking tombstones next to a fishing hole. That makes them a renewable bait supply parked wherever you want it. As bait they sit near the bottom of the scale, fine for casual crate fishing and not what you want on a quest fish attempt. Any bug net catches one.

They die to anything, including passing enemies, so net them the moment you see one rather than finishing your fight first. Turning one into a cage is a one way trip: once it is furniture the critter is gone unless you run the cage back through Shimmer.