Eastern rainbowfish

Melanotaenia splendida

Wild range: Northeast Australia (Australia)

At a glance: Eastern rainbowfish care

Compiled reference information. Review the care notes and original sources below.

What temperature is listed for Eastern rainbowfish?

The compiled profile lists 20.0–30.0 °C for Eastern rainbowfish (Melanotaenia splendida). Check the original sources below for context and differing recommendations.

What tank size is listed for Eastern rainbowfish?

The profile lists a minimum tank volume of 26.4 US gallons (100.0 liters). Volume alone does not establish suitability; consider dimensions, group size and other inhabitants alongside the full care notes.

What pH is listed for Eastern rainbowfish?

The compiled profile lists a pH of 6.4–8.0. Review the cited care sources alongside the other water parameters in this profile.

Natural habitat

The Eastern Rainbowfish is commonly found in various freshwater habitats including rivers, streams, swamps, and lagoons in eastern Australia, particularly in regions subject to seasonal water level changes. These fish are usually found in schools and prefer areas with submerged wood and dense riparian vegetation.

Where they are found

Rainbowfish exemplify the rich biodiversity of Australia, home to over 30 native species, many found in isolated waters. These species display a variety of colors and patterns, adapting to their unique environments.

Aquarium care

When setting up an aquarium for Eastern Rainbowfish, ensure a minimum tank size of 100 liters, incorporating a variety of live plants to simulate their natural habitat. The use of moderate lighting, a secure lid to prevent jumping, and regular water changes is crucial for maintaining optimal conditions.

Feeding

A varied diet is crucial for the health of Eastern Rainbowfish. They thrive on a mixed diet comprising flake foods formulated for omnivorous fish, as well as live and frozen options such as brine shrimp, daphnia, and vegetable matter; frequent feeding will enhance their color and vitality.

Compatibility

Eastern Rainbowfish are peaceful and community-oriented, making them ideal companions for other non-aggressive species like tetras, catfish, and guppies. Avoid keeping them with larger, aggressive fish that may stress or harm them, ensuring a harmonious tank environment.

Breeding

Breeding rainbowfish can be achieved in a community tank but is best conducted in a dedicated breeding setup. They lay eggs scattered among plants. It's advisable to remove adults post-spawning to protect the eggs and fry, which should be fed infusoria or powdered fry food initially, transitioning to baby brine shrimp as they grow.

Sources

Compiled from multiple independent care sheets — not copied from a single site.