Chromis viridis is usually known to be a swarm-fish and we kept this statement here for quite a while. It seems though that keeping a swarm is only a matter of time, after a while the fishes grow adult and then pairs will evolve, breed and get agressive against all others.
Dascyllus cyanurus Rüppell, 1838
Glyphisodon bandanensis Bleeker, 1851
Heliases frenatus Cuvier, 1830
Heliases lepisurus Cuvier, 1830
Pomacentrus viridis Cuvier, 1830
Classification: Biota > Animalia (Kingdom) > Chordata (Phylum) > Vertebrata (Subphylum) > Gnathostomata (Superclass) > Pisces (Superclass) > Actinopteri (Class) > Perciformes (Order) > Labroidei (Suborder) > Pomacentridae (Family) > Chromis (Genus) > Chromis viridis (Species)