In the pet shop zebrafish are kept in community with other fish species. One could als say that they coexist. I watched them for while to see if they interact with each other and asked the shop owner if they do. They don’t. It seems like they don’t exist for each other.
|Siamese algae eater||Gyrinocheilus aymonieri||Southeast Asia||large rivers, occasionally flooded fields|
|Ornate tetra||Hyphessobrycon bentosi||Amazon Basin (Brazil, Peru)||sluggish tributaries|
|Panda garra||Garra flavatra||western Myanmar (endemic)||shallow section of the stream, pools containing clear, slow-moving water|
|Paradise fish||Macropodus opercularis||East Asia (Korea to northern Vietnam)||shallow water with dense vegetation, (marsh, rice field)|
|Black tetra||Gymnocorymbus ternetzi||south-central Brazil, Paraguay, northeast Argentina||a preference for small, slow moving creeks, streams, and tributaries that are well shaded from the forest canopy|
|cockatoo dwarf cichlid||Apistogramma cacatuoides||Amazon River basin||small shallow streams or lagoon-like waters in the rain forest|