Rainbow Fish / Aquarium Zone · Ballina
Melanotaenia duboulayi
A peaceful community fish. Grows to about 12 cm and suits a tank of 100 litres or more.
The fish, up close
The Crimson Spotted Rainbow, scientifically known as Melanotaenia duboulayi, is a stunning freshwater fish species native to Australia. These fish are known for their vibrant colours, with crimson red spots along their iridescent blue-green bodies. Their fins are often edged in striking red, adding to their overall beauty. The males tend to be more colourful and slightly larger than the females. They are active swimmers and bring a lively energy to any aquarium they inhabit.
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
These fish are peaceful and social, making them great additions to community aquariums. They are known to be active swimmers, constantly exploring their environment. They do well in groups, so keeping them in schools of at least 6 individuals is recommended to ensure their well-being.
Tank planning
Maintaining good water quality is essential for the health of Crimson Spotted Rainbows. They prefer slightly alkaline water with a pH range of 7.0-8.0 and a temperature between 22-26°C. Regular water changes and a well-filtered tank are crucial. Providing ample hiding spots and plants will also help them 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 Crimson Spotted rainbow.
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.
Crimson Spotted rainbow is listed with this tank recommendation: A tank size of at least 100 litres is recommended for a small group of Crimson Spotted Rainbows. It's important to offer them plenty of horizontal swimming space as they are active swimmers. A longer tank rather than a taller one is preferable to accommodate their swimming behaviour. 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 Crimson Spotted rainbow? Contact us to confirm current availability and discuss whether it suits your aquarium before making the trip.
18 Southern Cross Drive
