Diamond Rainbowfish
✅ Level: Easy — a brightly colored, active schooling fish for the community aquarium.
The Neon Rainbowfish (Melanotaenia Praecox) is a lively schooling fish with a brilliant, iridescent blue shimmer that changes depending on the light. As a schooling fish, it feels most comfortable in a group, where its active, colorful swimming behavior truly shines.
🐠 Animal Specifications
| Max. length | ±6 cm |
| Temperature | 24–28°C |
| pH | 6.0–7.0 |
| Min. aquarium length | 100 cm |
| Diet | Omnivore |
| Min. school size | 6 pieces |
| Breeding behavior | Egg scatterer |
| Origin | Australia - Oceania |
| Family | Melanotaeniidae |
| Difficulty | ⭐ Easy |
🏪 Collection & warranty
- Only available for pickup in our store in Heinkenszand — this animal is not shipped
- Feel free to inspect the fish carefully in the store when picking it up
- Feel free to ask for advice on care or aquarium composition when picking up
✂️ Care
Keep in a school of at least 6 pieces — the larger the group, the more active and beautiful their swimming behavior. Good lighting brings out the iridescent blue color best. As an egg scatterer, this fish spreads its eggs loosely among fine plants, with no further parental care.
🐠 Combination tip
Peaceful and well-suited for combining with other calm, active community fish. A colorful addition to any well-planted aquarium.
❓ Frequently asked questions
How many should I buy at minimum?
At least 6 pieces — as a schooling fish, it feels most comfortable in a group.
Why does my fish's color change?
The iridescent blue shimmer changes depending on the light — this is normal and typical for this species.
Is this fish suitable for a community aquarium?
Yes, the Neon Rainbowfish is peaceful and combines well with other calm species.
Do you have another question? Feel free to visit the store — we're happy to help you make the right choice for your aquarium.
Why Aquarium Plant Shop?
- Many types of aquarium fish in stock.
- Pick up in store is possible 6 days a week.
- Livestock will not be shipped.