[Ebook] 500 freshwater aquarium fish – Cichlids – Panda Dwarf Cichlid (Apistogramma nijsseni)
One of the most immediately recognizable features of this species is the rounded caudal fin of the vast majority of males (in most other species, there are upper and lower fin ray extensions). As in many other Apistogramma, several naturally occurring color forms of this species – whose sex is influenced by both temperature and pH – exist.