More info
Datasheet
| Minimum Tank Size | 1000 litres / 264.17 US gallons |
| Maximum Size | 23.0cm / 9.06inches |
| Reef Compatible | Reef safe with caution |
| Temperament | Mostly peaceful but might be aggressive towards similar species |
| Temperature | 22.2°C / 71.96°F - 25.6°C / 78.08°F |
| Specific Gravity | 1.020-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
The Smallmouth grunt (Haemulon chrysargyreum) belongs to the family Haemulidae, specifically under the genus Haemulon. This species, found in the Mexican Gulf and West Atlantic, can reach a maximum size of 23.0cm. It is a predatory fish, known to consume benthic crustaceans, worms, and various fish species.
Aquarium Suitability
Considered suitable with care for aquariums, these grunts are mostly peaceful but can display aggression towards similar species. They require a very large tank as they grow rapidly when well-fed, making it challenging to keep them in home aquariums once fully grown. Frequent feeding is essential, especially during their initial acclimation period, and a varied diet that includes larger crustaceans, invertebrates, and small crustaceans is necessary for their health.
Demands, Care, and Hardiness
Smallmouth grunts are classified as hardy fish, but they have specific demands that must be met for their well-being. These demands include a spacious aquarium with ample swimming space, good hiding spots like live rocks, and a diet rich in nutrients to sustain their rapid growth rate. They require a pH range of 8.1-8.4, a specific gravity of 1.020-1.025, a temperature between 22.2-25.6°C, and a carbonate hardness (KH) of 8-12.
Reef Suitability
With cautious consideration, Smallmouth grunts are deemed reef safe. However, their predatory nature might pose a threat to smaller crustaceans, snails, and other reef inhabitants. Therefore, it is advisable to monitor their behavior closely in a reef setup.
Aquarium Setup
When arranging an aquarium for Smallmouth grunts, it is crucial to provide numerous hiding places, such as spaces between live rocks, to ensure their comfort. The tank should offer plenty of open space for swimming, given their inclination to swim actively. Additionally, maintaining stable water conditions within the recommended parameters is vital for their overall health.
Behaviour
These fish can either thrive individually or in a group setting. They are known to exhibit mostly peaceful behavior but can turn aggressive towards similar species, especially during territorial disputes.
Feeding and Diet
Smallmouth grunts require a diverse diet to thrive in captivity. Feeding them larger crustaceans, other invertebrates, and small crustaceans like krill, mysis, and artemia is essential for their nutritional needs.
Habitat and Distribution
In the wild, Smallmouth grunts inhabit the waters of the Mexican Gulf and the West Atlantic. Their natural habitat consists of areas rich in benthic crustaceans, worms, and various fish species, which form the primary components of their diet.