Mono (Monodactylus argenteus)


A popular brackish water aquarium fish, the Mono aregenteus or Moony is an extremely widespread fish found throughout the Indo-Pacific region and Africa. This species is amphidromous, which means they regularly move between freshwater in marine habitats. Although they are sometimes marketed as a freshwater fish (and can be kept as such as juveniles), Monos will do best in brackish or marine aquariums. Although juvenile Monnos can tolerate pure freshwater for a while, they will need to be transferred to a brackish or full marine aquarium later in life. A social fish often found in large aggregations, they do well in groups of 5 or more.



Mono (Monodactylus argenteus)

Origin: Wild Thailand
Diet: An omnivore, will accept most frozen and prepared foods in the aquarium
Adult Size: 8″
Recommended Tank Size: 90 gallons
Compatibility: Generally peaceful, but should be kept with similarly sized fish

Preferred Water Parameters
pH:                          7.5 – 8.2
Salinity:                 1.00 – 1.025
Temp:                     76-82F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm