Golden Wonder Killifish

Golden Wonder Killifish key facts

Care level

Beginner-friendly

Lifespan

About 6 years

Size

7-10cm

Temperature

22〜25℃

Diet

Prepared foods, frozen bloodworm, live insects and crustaceans

Tank

FishBase gives a minimum aquarium size of 80cm. It lives just under the surface, so a tank with a wide water surface suits it, and the lid must be closed with no gaps because it jumps well.

Water Temperature & Quality

FishBase records 22-25C in the wild, in habitats ranging from fresh to brackish water.

Tank Mates

It is an ambush predator that watches the surface, and it eats fish small enough to swallow. Combine it with fish of similar size or larger that occupy different levels of the tank.

Diet & Feeding

In the wild it takes insects, crustaceans and small fish. In aquaria it accepts prepared foods, but frozen and live foods should be included.

Breeding & Spawning

FishBase states explicitly that it is not a seasonal killifish, so the eggs do not need to be stored dry.

Health & Notes

FishBase describes it as easy to maintain. A lid is essential because it jumps. The trade name golden wonder refers to the yellow strain, whose colour differs from wild fish. IUCN status is Least Concern.

About Golden Wonder Killifish

A hardy, golden-bodied egg-laying killifish that's easy to care for — a great choice for beginners.

7 things to know before welcoming a Golden Wonder Killifish

1. 1A Surface-Dwelling Swimmer

   In the wild, this species hunts small fish and insects near the surface, so it spends most of its time in the upper layer of the tank. A secure lid helps prevent jumping accidents.

2. 2Territorial Behavior Between Males

   Males can spar over territory, so give them a spacious tank with plenty of hiding spots if keeping more than one, and adjust the setup based on how they interact.

3. 3Grows to 7–10 cm as an Adult

   Adults reach roughly 7–10 cm, making this a mid-sized killifish. Plan for a tank with enough room to accommodate their full-grown size from the start.

4. 4Carnivorous with a Preference for Live Motion

   This species is carnivorous, feeding on small fish and insects in the wild. It can adapt to prepared foods, but many individuals show a strong preference for frozen bloodworms or live foods, so it helps to observe feeding response.

5. 5Hardy and Tolerant of Water Changes

   While considered hardy and beginner-friendly, this fish still benefits from consistent care. Regular water changes and filter maintenance help preserve its vibrant coloration and long-term health.

6. 6A Lifespan of Around 6 Years

   This species lives relatively long for a killifish, typically around 6 years. Since it's a long-term commitment, it's worth confirming your setup and lifestyle can support it before bringing one home.

7. 7Prepare the Tank Before Bringing One Home

   Before bringing one home, set up a tank with an established filtration cycle, a secure lid, and hiding spots. Take time with the acclimation process to minimize stress from the change in environment.

Frequently asked questions about Golden Wonder Killifish

Q.Is this fish suitable for beginners?

A.Yes, it's considered a hardy, beginner-friendly species. With consistent basic water quality management, it can be kept without major difficulties.

Q.Can it be kept with other fish?

A.Since it's carnivorous, it may prey on fish small enough to fit in its mouth. It's best paired with tankmates of a similar size or larger.

Q.Does it jump out of the tank?

A.It's an active surface swimmer and may jump when startled, so a securely fitted lid is recommended.

Q.How big does it grow?

A.It grows to about 7–10 cm as an adult, making it a mid-sized killifish. Plan your tank size with this in mind.

Q.Are there any legal restrictions on keeping this fish?

A.The Golden Wonder Killifish is not subject to CITES, so no special procedures are required in this regard.

Useful tools for Golden Wonder Killifish care

Learn more about Golden Wonder Killifish in the encyclopedia

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