Shark / Aquarium Zone · Ballina
Balantiocheilos melanopterus
Aggressive, and best with robust tankmates of a similar size. Grows to about 30 cm and suits a tank of 200 litres or more.
The fish, up close
The Silver Shark, scientifically known as Balantiocheilos melanopterus, is a striking fish with a streamlined silver body and a prominent black dorsal fin that stretches from the head to the tail. They have a sleek appearance and a slender shape, making them an attractive addition to any freshwater aquarium. This species is known for its peaceful nature and active swimming habits, often seen darting around the tank in search of food or exploring their surroundings. Silver Sharks are schooling fish, so they should be kept in groups of at least 5 to ensure their social needs are met.
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 Sharks are generally peaceful and sociable fish that do well in community aquariums. They are active swimmers and enjoy having plenty of space to explore. These fish are known to be fast and agile, often darting around the tank in quick bursts of speed. They are not aggressive towards other fish but may occasionally chase smaller tankmates, especially if they feel crowded or threatened.
Tank planning
Maintaining good water quality is essential for the health of Silver Sharks. They prefer well-oxygenated water with moderate water flow. Regular water changes and filtration are important to keep their environment clean and stable. Providing ample swimming space and places for them to hide, such as plants or driftwood, will help create a comfortable habitat for these active fish.
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 Shark.
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 Shark is listed with this tank recommendation: A minimum tank size of 200 litres is recommended for a small group of Silver Sharks. Larger tanks are preferred to accommodate their active nature and schooling behaviour. A longer tank with plenty of swimming space is ideal for these fish. 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 Shark? Contact us to confirm current availability and discuss whether it suits your aquarium before making the trip.
18 Southern Cross Drive
