Misc / Aquarium Zone · Ballina
Apteronotus albifrons
Semi-aggressive, so choose its tankmates with care. Grows to about 50 cm and suits a tank of 300 litres or more.
The fish, up close
The Ghost Knife, scientifically known as Apteronotus albifrons, is a fascinating freshwater fish with a distinctive appearance. This species has an elongated, knife-shaped body with a transparent, almost ghostly appearance, hence its common name. It features a long fin that runs along the underside of its body, giving it a graceful and unique look. These fish are nocturnal and have poor eyesight, relying on electrolocation to navigate their surroundings. Ghost Knives are peaceful and prefer to hide during the day, coming out at night to explore and hunt for food.
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
Ghost Knives are generally peaceful and do well in community tanks with other non-aggressive fish species. They are shy and prefer to hide among plants, rocks, or driftwood during the day. These fish are most active during the night when they hunt for food. Due to their nocturnal nature, they may not be as active during the day compared to other fish species.
Tank planning
Maintaining good water quality is essential for the health of Ghost Knives. They prefer soft, slightly acidic water with a temperature range of 24-28°C. Providing plenty of hiding spots and dim lighting in the aquarium will help these fish feel secure. Regular water changes and a well-balanced diet are crucial for their well-being.
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 Ghost Knife.
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.
Ghost Knife is listed with this tank recommendation: A minimum tank size of 200 litres is recommended for a single Ghost Knife. However, larger tanks around 300 litres or more are preferable, especially if keeping them with tank mates. These fish require ample space to swim and explore due to their active nature. 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 Ghost Knife? Contact us to confirm current availability and discuss whether it suits your aquarium before making the trip.
18 Southern Cross Drive
