Ghost Cish, named after their translucent blue-white coloring, are Cish that leaned heavily into the filter feeder niche. Their top tentacles have an added chamber used to filter seawater, giving them a bulbous look. These chambers are linked to the Cish's gill slits, lined with a high density of pseudofilaments to allow them to catch their food. The upper sections of these chambers are transparent.
Ghost Cish also have very thin flippers and less developed organs to facilitate their filter-feeding habits. Their organs are covered in a layer of bluish fat to use as camouflage and an energy store in the winter.