Misc / Aquarium Zone · Ballina
Metynnis argenteus
Semi-aggressive, so choose its tankmates with care. Grows to about 15 cm and suits a tank of 300 litres or more.
The fish, up close
The Silver Dollar (Metynnis argenteus) is a peaceful, schooling fish with a distinctive round, disc-shaped body. They are named for their silvery colouration and resemblance to old silver dollars. These fish have a laterally compressed body with a high back and a flat abdomen. Their fins are translucent, and they have a black spot on the upper part of their body near the tail fin. Silver Dollars are active swimmers that enjoy open spaces to move around. They are known for their peaceful nature and make great community tank inhabitants.
Care guide
Use these notes to shape a setup around the fish, then speak with our team about the tank you have in mind.
Plan your setupBehaviour
Silver Dollars are peaceful and social fish that do well in groups of at least six individuals. They are active swimmers and should be provided with plenty of space to explore. They may occasionally chase each other but are generally not aggressive towards other tankmates. They do best in a community tank setting with other peaceful species.
Tank planning
Maintaining good water quality is crucial for the health of Silver Dollars. They prefer slightly acidic to neutral water conditions with temperatures between 24-28°C. Regular water changes and a well-filtered aquarium are necessary to keep them healthy. Provide ample hiding places and plants for them to feel secure.
Practical details
Questions
For a specific fish, current stock or a tank setup question, speak with the Aquarium Zone team before travelling.
Contact the storeAquarium Zone regularly helps customers find freshwater fish in Ballina and across the Northern Rivers. Stock changes week to week, so contact the store before visiting if you are looking for Silver Dollar.
Yes. Bring your tank size, current fish list, setup photos, and any water test results so the team can help with compatibility, stocking, and care advice.
Silver Dollar is listed with this tank recommendation: A minimum tank size of 200 litres is recommended for a small group of Silver Dollars. However, larger tanks around 300 litres or more are preferred to accommodate their active nature and provide ample swimming space. Ask in-store for advice based on your exact setup and tank mates.
Yes. Aquarium Zone serves aquarium hobbyists from Ballina, Lennox Head, Alstonville, Wollongbar, Bangalow, Byron Bay, Lismore, Evans Head, Mullumbimby, Casino and the wider Northern Rivers.
Aquarium Zone / Ballina
Looking for Silver Dollar? Contact us to confirm current availability and discuss whether it suits your aquarium before making the trip.
18 Southern Cross Drive
