The ramosus (Salarias ramosus) is a popular reef aquarium fish reaching 5 in (14 cm) in the home aquarium. Originating from the Western Pacific 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.
Quick facts
| Scientific name | Salarias ramosus |
| Max size | 5 in (14 cm) |
| Min tank size | 30 gal (115 L) |
| Temperament | Semi-aggressive |
| Diet | Herbivore |
| Reef safe | Yes |
| Care level | Easy |
| Origin | Western Pacific |
Overview
The following sections detail exactly how to keep this species thriving in a saltwater reef environment.
Tank requirements
Provide a minimum tank size of 30 gal (115 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.
Water parameters
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.
Diet and feeding
Feed a herbivore diet consisting of nori sheets, spirulina pellets, and marine algae. Feed 1–2 times daily in small amounts consumed within two minutes. Vary the diet to ensure complete nutrition and vibrant coloration.
Behavior and compatibility
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.
Breeding
Breeding Salarias ramosus in captivity is possible for dedicated hobbyists. Sexing can be difficult without observing spawning behavior.
Tips for success
- Quarantine for at least 2–4 weeks before adding to your display tank.
- Provide 30 gal (115 L) minimum—larger is always better for long-term health.
- Offer daily nori and algae to prevent HLLE.
- 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.
Frequently asked questions
What tank size does a Salarias ramosus need?
The minimum recommended tank size is 30 gal (115 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 herbivore species. Provide daily algae sheets, spirulina, and vegetable-based marine foods.
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