The nigropinnata (Wetmorella nigropinnata) is a popular reef aquarium fish reaching 3 in (8 cm) in the home aquarium. Originating from the Indo-Pacific region, it is rated as easy difficulty and is generally considered reef safe. Its peaceful temperament makes it suitable for community reef setups when proper care guidelines are followed.
Fiche technique
| Scientific name | Wetmorella nigropinnata |
| Max size | 3 in (8 cm) |
| Min tank size | 20 gal (75 L) |
| Temperament | Peaceful |
| Diet | Carnivore |
| Reef safe | Yes |
| Care level | Easy |
| Origin | Indo-Pacific |
Présentation
The following sections detail exactly how to keep this species thriving in a saltwater reef environment.
Exigences du bac
Provide a minimum tank size of 20 gal (75 L) with ample live rock for grazing, hiding, and territory. Maintain standard reef parameters: temperature 75–80 °F, pH 8.0–8.4, salinity 1.024–1.026, alkalinity 8–11 dKH. This species is peaceful enough to add at any point in the stocking order. Moderate flow and lighting that suits your coral mix work well.
Paramètres de l'eau
Maintain standard reef aquarium parameters for long-term health:
- Temperature: 75–80 °F (24–27 °C)
- pH: 8.0–8.4
- Salinity: 1.024–1.026 sg
- Alkalinity: 8–11 dKH
- Ammonia / Nitrite: 0 ppm
- Nitrate: < 20 ppm (lower is better for a reef)
Stability is more important than hitting a specific number. Avoid sudden swings in any parameter.
Alimentation
Feed a carnivore diet consisting of frozen Mysis shrimp, enriched brine shrimp, and marine pellets. Feed 1–2 times daily in small amounts consumed within two minutes. Vary the diet to ensure complete nutrition and vibrant coloration.
Comportement et compatibilité
This species has a peaceful temperament and coexists well with most reef-safe community fish including clownfish, gobies, and cardinalfish. Fully reef safe with corals, clams, and invertebrates.
Reproduction
Breeding Wetmorella nigropinnata in captivity is possible for dedicated hobbyists. Sexing can be difficult without observing spawning behavior.
Conseils pour réussir
- Quarantine for at least 2–4 weeks before adding to your display tank.
- Provide 20 gal (75 L) minimum—larger is always better for long-term health.
- Vary between frozen, pellet, and live foods for optimal nutrition.
- Maintain stable water parameters—sudden changes cause stress and disease susceptibility.
- Observe the fish eating at the store before purchasing to ensure it is feeding well.
Questions fréquentes
What tank size does a Wetmorella nigropinnata need?
The minimum recommended tank size is 20 gal (75 L). This provides adequate swimming space, territory, and stable water volume. Larger tanks are always better, especially for active swimmers.
Is this fish reef safe?
Yes, this species is considered fully reef safe and will not harm corals, clams, or invertebrates.
What does this fish eat?
This is a carnivore species. Feed meaty foods: frozen Mysis shrimp, enriched brine shrimp, and high-quality marine pellets.
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