MONO ARGENTEUS (imported) 7cm

Monodactylus argenteus, commonly known as the Silver Moony, Mono, is a popular brackish-water fish from the family Monodactylidae. It features a striking, tall, compressed silver body with yellowish or black accents on the fins and distinctive vertical markings, especially in juveniles. These active, schooling fish are known for their graceful swimming and shiny appearance. Juveniles often enter lower-salinity areas, while adults prefer brackish to marine waters. In aquariums, they thrive in brackish setups (specific gravity around 1.005–1.015, or higher as they mature) but can adapt to freshwater when young. They grow quickly, so plan for a large tank from the start. Provide strong filtration, good water flow, open swimming space They are very active and produce waste, so robust filtration is essential. Do regular water changes.

TANK: Use robust plants or artificial plants; they will eat many soft-leaved plant varieties. Provide a tall or long tank with open areas suits their active nature. Be sure to cover the tank well as all these fish are expert jumpers. Feed a varied diet 2–3 times daily; they feed in the mid-water column.

TANK MATE: Keep in groups of at least 3–6 (more is better) for schooling and reduced aggression/nervousness. Suitable tank mate are Scats, Archerfish, mangrove jack, large Barbs or mono sebae. They are generally peaceful but can nip at very small fish or slow tankmates. Tank mate should generally be 7–8 cm.

Acclimate slowly, especially to salinity changes. They are intermediate-level fish—not for beginners—due to their size, waste production, and brackish requirements.