Freshwater fish group

Rainbowfish & blue-eyes

Bright, active Australian and New Guinean fish that appreciate open swimming space and groups.

6 profiles in this category. Each card uses a small directory thumbnail; open a profile for the larger reference image and full care notes.

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Rainbowfish & blue-eyes fish profiles

Boesemani rainbowfish (Melanotaenia boesemani) in an aquarium

Rainbowfish & blue-eyes

Boesemani rainbowfish

Melanotaenia boesemani

11 cm adult55 gal minimum

Generally peaceful in a suitable community. Needs a long aquarium and alkaline, mineral-rich water.

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Turquoise rainbowfish (Melanotaenia lacustris) in an aquarium

Rainbowfish & blue-eyes

Turquoise rainbowfish

Melanotaenia lacustris

12 cm adult55 gal minimum

Generally peaceful in a suitable community. A practical community profile with adult-size guidance.

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Celebes rainbowfish (Marosatherina ladigesi) in an aquarium

Rainbowfish & blue-eyes

Celebes rainbowfish

Marosatherina ladigesi

7 cm adult29 gal minimum

Generally peaceful in a suitable community. Gentle flow, cover and hard, alkaline water suit this Indonesian species.

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Threadfin rainbowfish (Iriatherina werneri) in an aquarium

Rainbowfish & blue-eyes

Threadfin rainbowfish

Iriatherina werneri

5 cm adult20 gal minimum

Generally peaceful in a suitable community. Delicate fins and a small mouth; choose calm tank mates and fine foods.

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Red neon blue-eye (Pseudomugil luminatus) in a planted aquarium

Rainbowfish & blue-eyes

Red neon blue-eye

Pseudomugil luminatus

4 cm adult15 gal minimum

Generally peaceful in a suitable community. A practical community profile with adult-size guidance.

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Forktail blue-eye (Pseudomugil furcatus) in an aquarium

Rainbowfish & blue-eyes

Forktail blue-eye

Pseudomugil furcatus

5 cm adult20 gal minimum

Generally peaceful in a suitable community. A practical community profile with adult-size guidance.

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