Danio / Aquarium Zone · Ballina
Danio rerio
A peaceful community fish. Grows to about 5 cm and suits a tank of 60 litres or more.
The fish, up close
The Blue Danio, scientifically known as Danio rerio, is a small and active freshwater fish species that are popular in the aquarium hobby. They have a slender, elongated body with striking electric blue and silver colouration. Their fins are transparent and have a shimmering quality, adding to their overall beauty. Blue Danios are schooling fish and thrive in groups, displaying energetic swimming behaviour that is delightful to observe. They are relatively hardy and easy to care for, making them an excellent choice for beginner aquarists.
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
Blue Danios are peaceful and social fish that prefer to be kept in groups of at least 6 individuals. They are active swimmers and enjoy darting around the tank, especially in well-planted areas with open swimming spaces. They get along well with other peaceful fish species and are generally not aggressive.
Tank planning
Maintaining stable water parameters is crucial for the health of Blue Danios. They prefer water temperatures between 22-26°C and slightly acidic to neutral pH levels. Regular water changes and a well-filtered aquarium are essential to keep them healthy. Provide ample hiding spots 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 Blue Danio.
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.
Blue Danio is listed with this tank recommendation: A minimum tank size of 60 litres is recommended for a small school of Blue Danios. However, larger tanks with more swimming space are preferable, especially if keeping them with other tank mates. 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 Blue Danio? Contact us to confirm current availability and discuss whether it suits your aquarium before making the trip.
18 Southern Cross Drive
