Rainbowfish

Australian Rainbowfish (Melanotaenia splendida)

Melanotaenia splendida is the Australian rainbow with a shoulder: a deep-bodied river schooler that needs a metre of swimming room, a real filter,…

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Pseudomugil signifer males grow filamentous fins for a surface dance — a thumbnail Australian blue-eye that only works as a covered school with f…

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Bedotia madagascariensis is Madagascar’s zona, not a New Guinea Melanotaenia: a surface school with a red-tailed male, a lid with no gaps, and an…

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Melanotaenia praecox is the rainbow that actually fits a modest tank — 5–6 cm of blue and red that appear when the school is eight or more and…

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The Celebes Rainbowfish is a graceful schooling fish from Sulawesi with translucent fins and striking blue and yellow accents. Learn about its wate…

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A practical care guide to the Threadfin Rainbowfish, covering aquarium size, water conditions, diet, breeding and compatible tank mates.

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Rainbowfish shine in schools — juveniles look plain until maturity reveals iridescent sides worth the wait.

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A practical care guide to keeping Turquoise Rainbowfish (Melanotaenia lacustris) healthy in the home aquarium.

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A practical care guide to keeping Forktail Blue-eye (Pseudomugil furcatus) healthy in the home aquarium.

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Exploring the Vibrant Boesemani Rainbowfish: A Splash of Color in Your Aquarium If you’re in search of a vivacious and brilliantly colored fish t…

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Introduction The Red Metallic Rainbow Fish is a dazzling freshwater species that adds a splash of color to any aquarium. Known for their iridescent…

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