Forktail Blue Eye Rainbowfish

Pseudomugil furcatus

Forktail Blue Eye Rainbowfish is a peaceful middle swimmer. Keep in a school of 8+.

PeacefulMiddle swimmerKeep in a school of 8+Beginner

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Quick facts

Adult size: ≤ 2.2" (≤ 5.5 cm)
Aquarium size: 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
Care level: Beginner
Temperament: Peaceful
Swimming zone: Middle swimmer
Temperature: 73–79°F (23–26°C)
pH: 6–8
GH: 8–18 dGH
KH: 5–12 dKH
Diet: Omnivore
Lifespan: up to 5 years
Group behavior: Keep in a school of 8+

Care requirements

Care level: Beginner.

Lifespan: up to 5 years.

Aquarium size and space needs

Minimum aquarium size: 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length. Plan the layout and stocking within that limit.

Water parameters

Suitable water: temperature 23–26 °C, pH 6–8, GH 8–18 dGH, KH 5–12 dKH.

Temperament and compatibility

Forktail Blue Eye Rainbowfish is peaceful and suits calm community fish.

Keep in a school of 8+.

Swimming zone and behavior

This fish uses the middle part of the aquarium, so leave enough open swimming space for movement and feeding. Keep in a school of 8+.

Feeding

As an omnivore, Forktail Blue Eye Rainbowfish should receive a varied diet rather than one repeated food type.

Before adding this fish

Plan for an aquarium of 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.
Make room for its social group.
Avoid aggressive or highly competitive fish.
Keep in a school of 8+.
Offer a varied diet that matches this species.

Similar fish profiles

Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.

Banded Rainbowfish Melanotaenia trifasciata Same family Similar care level Same temperament Beginner ≤ 5.1" (≤ 13 cm) 70–79°F (21–26°C) Aru Rainbowfish Melanotaenia picta Same family Similar care level Same temperament Beginner – Intermediate ≤ 3.5" (≤ 9 cm) 72–81°F (22–27°C) Black Banded Rainbowfish Melanotaenia nigrans Same family Similar care level Same temperament Beginner – Intermediate ≤ 3.9" (≤ 10 cm) 73–82°F (23–28°C) Bloodfin Tetra Aphyocharax anisitsi Similar care level Same temperament Same swimming zone Beginner ≤ 2.2" (≤ 5.5 cm) 63–81°F (17–27°C) Blue Cheek Dwarf Cichlid Apistogramma eunotus Similar care level Same temperament Bottom dweller Beginner – Intermediate ≤ 2.2" (≤ 5.5 cm) 73–84°F (23–29°C) Boesemans Rainbowfish Melanotaenia boesemani Same family Similar care level Same temperament Beginner ≤ 5.1" (≤ 13 cm) 79–86°F (26–30°C)

FAQ

How large does Forktail Blue Eye Rainbowfish get?

Forktail Blue Eye Rainbowfish reaches ≤ 2.2" (≤ 5.5 cm).

What aquarium size does Forktail Blue Eye Rainbowfish need?

Use an aquarium of at least 26 US gal (100 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.

Is Forktail Blue Eye Rainbowfish peaceful?

Yes. Forktail Blue Eye Rainbowfish is recorded as peaceful and is best planned with calm community fish that do not harass it or dominate the feeding area.