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Boesemani rainbowfish (Melanotaenia boesemani) are known for their striking bicolored appearance, with a vibrant blue or bluish-purple head and front half, transitioning to a bright orange or red posterior. They are a popular and peaceful community fish, often kept in planted aquariums, and typically reach a size of 3-4.5 inches.

The Red Irian Rainbowfish, scientifically known as Glossolepis incisus, is a vibrant freshwater fish prized for its striking red coloration, especially in males. These fish are active, peaceful, and well-suited for community or planted aquariums.

Threadfin Rainbowfish (Iriatherina werneri) are small, peaceful freshwater fish known for their distinctive, long, thread-like fins on males, hence the name. They are also called Featherfin Rainbowfish due to these ornate fins. These fish are native to New Guinea and Australia, inhabiting slow-moving streams and swamps.

The Goyder River rainbowfish (Melanotaenia trifasciata) is a lively, schooling fish native to Australia, growing up to 13 cm (5 inches) but commonly reaching 8 cm. It features a distinct mid-lateral blue-black stripe in males, with body and fins displaying vibrant colors like yellow, orange, and red that intensify with age and in the presence of females. These peaceful community fish are well-suited for beginners, thriving in planted tanks with groups of at least five, clear, oxygenated water, and can be kept with other peaceful community fish.