The flavivertex (Pseudochromis flavivertex) is a popular reef aquarium fish reaching 3 in (8 cm) in the home aquarium. Originating from the Red Sea region, it is rated as easy difficulty and is generally considered reef safe. Its semi-aggressive temperament makes it suitable for community reef setups when proper care guidelines are followed.
Steckbrief
| Scientific name | Pseudochromis flavivertex |
| Max size | 3 in (8 cm) |
| Min tank size | 20 gal (75 L) |
| Temperament | Semi-aggressive |
| Diet | Carnivore |
| Reef safe | Yes |
| Care level | Easy |
| Origin | Red Sea |
Überblick
The following sections detail exactly how to keep this species thriving in a saltwater reef environment.
Beckenanforderungen
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. Add this species later in the stocking order to minimize territorial aggression toward existing tankmates. Moderate flow and lighting that suits your coral mix work well.
Wasserparameter
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.
Ernährung und Fütterung
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.
Verhalten und Verträglichkeit
This species has a semi-aggressive temperament and may be territorial toward similar-looking species or conspecifics. Best kept singly or in a mated pair in tanks under 75 gallons. Fully reef safe with corals, clams, and invertebrates.
Zucht
Breeding Pseudochromis flavivertex in captivity is possible for dedicated hobbyists. Sexing can be difficult without observing spawning behavior.
Tipps für den Erfolg
- 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.
Häufig gestellte Fragen
What tank size does a Pseudochromis flavivertex 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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