Overnight shipping required for the safety of all live fish
Free Overnight Shipping on all orders over $200
Quantity
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100% Live Arrival Guarantee
Photo any DOA in the sealed bag on the day of delivery. Approved claims are resolved with store credit, refund, or replacement at Razz Aquatics' discretion. See policy →
Quarantined livestock • Professionally packed • Insulated with weather protection
100+ AquariumsQuarantined Before ShippingFamily-Owned
Care Level
Beginner Friendly
Temperature
72–80°F
pH Range
6.5–7.5
Min. Tank
20 gallons
Red Neon Rainbowfish$11.99
Species Profile
Red Neon Rainbowfish
Melanotaenia praecox
Why We Love This Fish
Verified shrimp-safe species
Quarantined before shipping
Stunning in planted tanks
Peaceful community fish
Red Neon Rainbowfish (Melanotaenia praecox), also called Dwarf Neon Rainbowfish, are a compact, stunning species from Papua New Guinea. The iridescent blue-green body catches light constantly, and the red fins — deepest on males — create one of the more dramatic color contrasts available in a fish under 3 inches.
They’re active, mid-to-upper-column swimmers that do best in groups of 6 or more. Given space to school and a planted tank backdrop, they’re one of the most visually rewarding fish you can keep. Hardy and adaptable within their temperature range, they suit most community setups without complication.
Quick Care Facts
Care Level
Beginner Friendly
Temperature
72–80°F
pH Range
6.5–7.5
Min. Tank
20 gallons
Diet
Small pellets, flake food, micro worms, frozen daphnia
Adult Size
~2.5 in
What’s Included
Quarantined fish
Insulated + weather pack
Overnight required
Species Spotlight
Why We Love This Fish
01
Iridescent Blue + Red Fins
The metallic blue-green body and deep red fins shift with light and angle. In a planted tank with good lighting, Red Neon Rainbowfish are genuinely hard to look away from.
02
Great Community Fish
Peaceful, active, and compatible with most other community fish. They add mid-column movement without causing problems for tankmates.
03
Schooling Display
A group of 10 or more Red Neon Rainbowfish creates a constant, coordinated swimming display that fills the mid-column of any planted tank.
Community Tank
Compatible Tank Mates
These nano fish coexist well with shrimp and other peaceful invertebrates.
Very slow-moving long-finned fish (bettas, fancy guppies) — Rainbowfish may nip
Large predatory fish
Expert Advice
Razz Aquatics Recommendation
Keep a group of 10 or more for a proper schooling display — males color up more intensely when competing for female attention. A longer tank (30+ inches) gives them room to move and shows their behavior at its best.
Fish ship via Overnight service to minimize stress and maximize live arrival success. Livestock ships Monday through Thursday. Choose your preferred delivery date at checkout.
1
Choose Delivery Date
Select your preferred delivery date at checkout. Livestock delivers Tuesday through Friday.
2
Quarantined & Health Checked
Every animal is imported, quarantined on-site, and health-checked before it ships.
3
Packed for the Weather
Insulated box with heat or cold pack matched to your local weather forecast.
4
Live Arrival Guaranteed
100% Live Arrival Guarantee on every order. Photo any DOA in the sealed bag on the day of delivery and submit a claim through the Start a Claim page. Approved claims are resolved with store credit, refund, or replacement at Razz Aquatics' discretion.See policy →
Fish orders require Overnight. Free Overnight at $200+. Shrimp & livestock: Free 2-Day at $120+.
Why Order From Razz Aquatics
Quarantined Before Every Shipment
Every animal we sell is imported from trusted suppliers, quarantined in our dedicated facility, and health-checked before it ships. We run over 100 aquariums on-site — each focused on a specific species or color morph.
This is a family-owned operation. We pack every order ourselves and stand behind it with a 100% Live Arrival Guarantee. No drop-shipping. No middlemen.
100+
Dedicated quarantine & holding aquariums on-site
48+
States served with live livestock delivery
4.9★
Average customer rating across all verified reviews
100%
Live Arrival Guarantee — backed without fine print
Quarantined Before ShippingFamily-Owned & Operated
Common Questions
Red Neon Rainbowfish FAQ
Are Red Neon Rainbowfish good for beginners?+
Yes. They’re hardy, adaptable, and peaceful. They tolerate a range of water conditions as long as parameters are stable.
Are Red Neon Rainbowfish safe with shrimp?+
They may pick at smaller shrimp or shrimplets. Safe with large, established adult shrimp in planted tanks with good cover.
How are they shipped?+
Professionally packed in an insulated box with a heat or cold pack matched to your local weather. Livestock ships Monday through Thursday and delivers Tuesday through Friday. Choose your preferred delivery date at checkout.
Is there a live arrival guarantee?+
Yes — 100% Live Arrival Guarantee on every order. Photo any DOA in the sealed bag on the day of delivery and submit a claim through the Start a Claim page. Approved claims are resolved with store credit, refund, or replacement at Razz Aquatics’ discretion.
How many should I keep?+
6 minimum, 10 or more for the best display. Males color up most intensely in groups with females present.
What do they eat?+
Small pellets, quality flake food, micro worms, and frozen daphnia. They accept most prepared foods readily.
What is the free shipping threshold?+
Free Overnight on fish orders $200+. Plants and dry goods ship free at $75+.
Live plants give nano fish cover, reduce stress, and create a more natural aquarium. They help break up sightlines, provide shelter for shy fish, and support a healthier planted tank.
Shrimp Safe
Shrimp Safe
Shrimp Safe
Shrimp Safe
Shrimp Safe
