Melanistic Upside Down Catfish (Synodontis nigriventris) Puffer Large catfish

Large catfish

Probably someone with an overactive imagination couldn’t pronounce "Batrachomoeus trispinosus" and needed to call them something

4 Bar Sumatra Datnoid Tiger Fish (Datnioides microlepis)

Planted aquariums with hearty

Other common names it is known by are Clown Featherback Fish

Melanistic Upside Down Catfish (Synodontis nigriventris) Puffer Large catfishThis fish normally swims upside down, methodically looking for food at the waters surface, under large plant leaves, and around submerged wood and rocks. In addition to its unusual upside down swimming, these fish are not affected by dorsal light response (DLS), which is a tendency of a fish to tilt its body toward the sun or bright artificial lighting.