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Aquarium Fish - Rainbowfish

Threadfin rainbowfish

Threadfin rainbowfish
(Iriatherina werneri)

Threadfin rainbowfish are a very interesting species of fish! Males feature a silvery-gray color with possible reddish or yellow accents. The finnage is what makes these rainbows so stunning. Like most rainbows, these have double dorsals. The first...  Read more >

Boesemani rainbowfish

Boesemani rainbowfish
(Melanotaenia boesemani)

Probably one of the most popular of the rainbowfish, the Boesemani Rainbow is quite colorful. While only silver in color as juveniles, these fish become quite stunning once adults. With a brilliant orange-red back half and a silvery-gold front half,...  Read more >

Lake kutubu rainbowfish

Lake kutubu rainbowfish
(Melanotaenia lacustris)

This beautiful rainbow features a stunning green-turquoise color and a silvery underbelly. Males, of course, are more colorful. Rainbows are schooling fish and will do best in groups of 3 or more. They are peaceful and can be kept in most...  Read more >

Dwarf rainbowfish

Dwarf rainbowfish
(Melanotaenia maccullochi)

McCulloch's Rainbow is a unique species of rainbowfish. With the same general body shape as others, this rainbow features a silvery-blue irridescent body color with 7 horizontal stripes varying in color from darker blue-black to red to yellow, or a...  Read more >

Parkinsoni rainbowfish

Parkinsoni rainbowfish
(Melanotaenia parkinsoni)

The beautiful Parkinson's Rainbow features an eliptical body shape with an array of colors that can vary. Usually sporting a basic coloration of silvery-blue, the Parkinson's Rainbow has random areas of brilliant red, orange, or yellow, as well as...  Read more >

Neon rainbowfish

Neon rainbowfish
(Melanotaenia praecox)

Probably the most popular of all of the rainbowfish, the Dwarf Neon Rainbow is a colorful addition to any community tank. The shimmering, irridescent blue coloration is very intense in males, along with brilliant red fins. Females feature the same...  Read more >

Western rainbow

Western rainbow
(Melanotaenia splendida)

The coloration of this rainbowfish is hard to describe as it varies greatly! With a basic body color of silvery-blue, the Ornate Rainbow often has a series of horizontal stripes in orange, red, black, and other colors. They also have a bright yellow...  Read more >

Regal rainbowfish

Regal rainbowfish
(Melanotaenia trifasciata)

These beautiful rainbows attain a coloration of gold, red, green, orange, and many others in-between. Males are usually more colorful than females. Rainbows like a planted tank best, with driftwood and other suitable decor. They are a peaceful...  Read more >

Spotted blue-eye

Spotted blue-eye
(Pseudomugil gertrudae)

Quite different looking than other rainbows, the Gertrude's rainbow is very small and slender in shape. It is in the "Blue-eye" family, recognized by their neon-blue eyes. The finnage of this rainbow is quite impressive with filaments and wide...  Read more >