🐠 Redeye Tetra – Active Community Schooling Fish

Moenkhausia sanctaefilomenae | Hardy silver tetra with striking red eyes

Add constant movement and bold contrast to your aquarium with Redeye Tetras — a hardy and energetic schooling fish known for its shimmering silver body, distinctive bright red eyes, and active group behavior.

Their combination of durability, peaceful temperament, and strong schooling instincts makes them an excellent choice for community aquariums and larger planted setups.

✨ Why aquarists love Redeye Tetras

✔️ Distinctive red eyes — bold contrast against metallic silver coloration
✔️ Active schooling behavior — energetic mid-water swimming
✔️ Hardy community species — adaptable and beginner-friendly
✔️ Excellent movement fish — adds life and activity to larger aquariums
✔️ Peaceful temperament — compatible with most tropical community species

🌍 About the species

Moenkhausia sanctaefilomenae originates from South America and is widely appreciated for its resilience, active nature, and striking eye coloration.

These fish are known for:

• Bright red eye rings
• Reflective silver body coloration
• Strong schooling behavior
• Constant mid-water movement
• Excellent adaptability in community aquariums

When maintained in groups, they create a lively and balanced display throughout the aquarium.

🏡 Ideal aquarium setup

Redeye Tetras thrive best in:

• Larger community aquariums
• Planted tropical setups
• Open swimming layouts
• Stable filtration and oxygenation
• Groups of 6 or more

Recommended setup:

• 75 liters or larger
• Open swimming space with planted zones
• Moderate water movement
• Stable tropical water conditions

⚠️ Compatibility notes

Redeye Tetras are generally peaceful but energetic.

Not ideal with:

• Extremely shy nano fish
• Very delicate long-finned species
• Aggressive predators
• Overcrowded aquariums

Best suited for:

✔️ Community aquariums
✔️ Active tropical fish setups
✔️ Larger schooling fish communities
✔️ Planted tanks with open swimming space

🚚 Professionally packed for live arrival

Every shipment is treated as a live biological transport, not a standard parcel.

Your fish are packed using:

• Oxygen-filled fish bags
• Temperature-insulated packaging
• Shock-absorbing thermocol protection
• Fastest safe transport routes available

This minimizes transit stress and improves live arrival success.

🛡️ Live Arrival Guaranteed*

Instant Refund for DoAs in accordance with our Refund Policy.

👉 You are not taking the risk alone.

🧭 Is this right for you?

✔️ You want an active and lively aquarium
✔️ You enjoy energetic schooling fish
✔️ You are building a larger community setup
✔️ You want hardy fish with distinctive appearance

⚠️ Not ideal if:

• You keep extremely timid fish
• Your aquarium is very small
• You prefer slow-moving centerpiece species
• Your setup lacks adequate swimming space

🔬 Nero Labs Standard

These fish are maintained with:

• Controlled batch monitoring
• Observation-based selection
• Stress-aware handling
• Survival-focused transport preparation

We prioritize long-term stability and health over bulk-volume movement.

👉 Add energy and contrast to your aquarium

Experience the active schooling behavior and distinctive appearance of Redeye Tetras from Nero Labs.

Redeye Tetra (Moenkhausia sanctaefilomenae)

Description

The Redeye Tetra (Moenkhausia sanctaefilomenae), offered by Nero Labs, is a selectively maintained ornamental characin recognized for its streamlined body profile, reflective silver coloration, and distinctive red pigmentation encircling the eyes. Native to river systems and floodplains of South America, this species demonstrates strong adaptability to captive environments when maintained in stable, well-structured group settings.

Body coloration presents as silvery to pale gold with translucent fins accented by contrasting black-and-white caudal markings. The characteristic red eye coloration is most prominent under low-stress conditions and stable water parameters. Behaviour is active and schooling-oriented, with occasional fin-directed activity in understocked or overcrowded systems.

Individuals supplied are lab-reared and system-acclimated within controlled, closed-system environments, reducing early-life stress and supporting predictable long-term adaptation to established aquaria. This lineage represents domesticated ornamental stock maintained for display consistency and aquarium suitability rather than wild ecological performance or conservation application.

System & Rearing Notes

Origin: In-house, Nero Labs
Rearing environment: Controlled, closed system
Line status: Selectively maintained ornamental characin lineage
Behaviour: Active and schooling; minor fin interaction may occur without adequate group size
Feeding behaviour: Omnivorous; readily accepts prepared and supplemental feeds
Swimming profile: Midwater, open-space swimmer
Colour development: Stable; enhanced under consistent, low-stress conditions

Minor variation in eye pigmentation intensity, body sheen, and fin contrast may occur between individuals and reflects normal biological diversity within maintained ornamental populations.

Availability & Use

Availability of Redeye Tetras is cycle-dependent and aligned with biological readiness and population stability rather than commercial inventory targets. This species is suitable for beginner to intermediate aquarists capable of maintaining schooling groups and consistent water quality.

Best suited for ornamental community aquaria, planted systems with open swimming zones, and mixed-species tanks with compatible, similarly active fish.

Important Note

Redeye Tetras require adequate group size to maintain behavioural balance and reduce fin-directed activity. Inadequate social structure or unstable water conditions may result in stress-related behaviour and subdued coloration.

Ethical & Operational Context

Distribution of Redeye Tetras through Nero Labs emphasizes organism welfare, closed-system integrity, and responsible management of schooling characins. Proceeds support ongoing refinement of small fish husbandry protocols, behavioural stability research, and applied ornamental aquaculture initiatives.