Tank setup
Size the aquarium to Mono Argentus's adult size and activity level. Match décor to natural behaviour — plants, rockwork, or open swimming room as needed.
Back to Brackish Fish
Brackish Fish
Archerfish, Monos, Scats
Uncommon
Monodactylus argenteus
Loading listings...
Community Marketplace
Fellow hobbyists may also be selling Mono Argentus.
Want Mono Argentus?
Tell shops you're looking — be the first to signal demand.
What to know before you buy.
Also known as the Silver Moony, this active, shoaling fish has a beautiful silver, disc-shaped body. Like other monos, they are best kept in groups and require a transition from low-brackish to high-salinity water as they mature. A large tank with ample swimming space is essential to accommodate their active nature.
Key traits
Select a tank to see how this species fits.
Everything you need to keep Mono Argentus healthy in a South African setup.
Size the aquarium to Mono Argentus's adult size and activity level. Match décor to natural behaviour — plants, rockwork, or open swimming room as needed.
Keep pH 7.5–8.5 and 24–28°C. Stable parameters matter more than chasing perfect numbers — acclimate new arrivals slowly.
Mono Argentus is an omnivore. Feed a varied diet appropriate for brackish fish — quality flakes, pellets, or frozen foods sized to the mouth.
Mono Argentus is generally peaceful. Keep in a group where possible for natural behaviour.
Pair with similarly sized peaceful tankmates in brackish fish. Avoid fin-nippers or species that outgrow this fish.
Breeding notes for Mono Argentus vary by line and water chemistry — ask your local shop about proven pairs in SA.
From hobbyists across SA.
Price trends and buyer demand — data only FishHub tracks.
SA price range this month: R200–900 · Average: R483
This data is unique to FishHub
No active alerts for Mono Argentus yet. Be the first to set one.
Species that typically work alongside Mono Argentus in a similar setup.
Mono Sebae
Monodactylus sebae
African Moony
Monodactylus kahawai
Green Scat
Scatophagus argus
Spotted Scat
Scatophagus argus
Silver Scat
Selenotoca multifasciata
Ruby Scat
Scatophagus rubrifrons
Smallscale Archerfish
Toxotes microlepis
Banded Archerfish
Toxotes jaculator