Common name: Viridescent parrotfish
General information
The Green Razorfish, scientifically known as Calotomus viridescens, is a species of parrotfish that exhibits vibrant green coloration and a distinctive filament on its dorsal fin. This species is not as common in the aquarium trade as some other parrotfish, but it can be a unique and colorful addition to larger marine aquariums.
Details
- Recommended minimum tank volume
- 300 liter (79 gallons)
- Salinity
- S.G. 1.020 to 1.025
- Temperature
- 22 to 28 °C (72 to 82 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 35 cm (1′2″)
- Care level
- Moderate to easy Needs ample grazing space
- Diet
- Herbivore Algae grazer, may need supplements
- Social
- Solo Can be territorial, best kept alone
- Reefsafe
- Yes
- Aggression
- Semi aggresive Territorial towards conspecifics
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPerch-like FishesPerciformes
- FamilyParrotfishScaridae
- GenusParrotfishCalotomus
- SpeciesViridescent parrotfishCalotomus viridescens (Ruppell, 1835)
- SynonymsCallyodon viridescens (Ruppell, 1835)Scarus viridescens Rüppell, 1835
Care
Green Razorfish require large tanks with plenty of swimming space and a well-established live rock structure to mimic their natural reef environment. They are herbivores, so their diet should consist of marine algae and vegetable-based foods. It's important to note that they have beak-like teeth designed for scraping algae off surfaces, which can sometimes lead to them nipping at live corals.
Reproduction
In the wild, Calotomus viridescens is known to form harems with a dominant male and several females. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. Reproduction in the home aquarium is rare and challenging.
Habitat
Green Razorfish are found in the Indo-Pacific region, from East Africa to the Line Islands, north to southern Japan, and south to New Caledonia. They inhabit coral reefs and rocky outcrops, often seen grazing on algae in shallow waters.