|Latin name||Hypoplectrus nigricans - (Poey, 1852)|
|Local name||Black hamlet|
|Family||Serranidae - Hypoplectrus|
|Origin||The Mexican Golf|
|Max length||15 cm (5,9")|
|Minimum volume||300 cm (79 gal)|
|Suitable for aquarium||Suitable with care|
|Reef safe||Reef safe with caution|
|Aggressiveness||Mostly peaceful but might be aggressive towards similar species|
Small crustaceans (Krill, mysis, artemia...)
Larger crustaceans (Shrimp, crabs...)
This spicies might be a threat to smaller fishes.
This species poses a threat towards shrimps and crabs etc., which are relatively small.
This species is very sensitive during transportation and acclimatizing into the aquarium.
This species will better acclimatize to the aquarium`s condition if introduced, when young.
Very small individuals can be very delicate.
They can live as a pair provided they are introduced simultaneously.
This species needs good hiding places, for example, between live rocks.
Hypoplectrus (Hamlets) are a colourful and relatively small predatory fish which are well suited to tank life.
All the species are very alike, when not taking colour and habitat into account.
They will eat small fish and crustaceans which can be swallowed, but are otherwise not a threat to the other animals in the aquarium.
Hamlets are fairly hardy and easy fish, but are not very good at adjusting to tank life. They should therefore be bought as young as feasable, and should be moved around as little as possible.
They are easy to feed and do not require live food, so a varied diet of frozen fish, crustaceans and the like is sufficient.
Needs to be fed once a day.
The Sea Bass family (Serranidae) spans a broad spectrum with regards to how suitable they are to aquaria, as some are best suited to specialist or larger aquaria, while other are often seen in reef aquaria.
Below are described the five subfamilies one sees most often in aquaria. There are however other species one can also keep under the right circumstances, but these are for the most, large predatory fish.
The Anthias species spans over many different genera, but the most common is the Pseudanthias genus. They mostly have an attractive orange or pink shade.
They are generally all reef safe and peaceful.
There is however a large difference to their food requirements, some species demand constant feeding, whereas others can get used to being fed once a day.
The easiest species are the following: P. bartelettorum, Anthias, Luzonichthys, Nemanthias, Odontanthias, Pseudanthias, Sacura and Serranocirrhitus
This subfamily encompasses some of the smallest fish in the Serranidae family, they can be very colourful but shy. The Liopropoma genus encompasses many species which are suitable for aquaria, however they normally thrive best in a very peaceful- or nano aquarium.
These fish grow typically too large for most home aquaria. There are however some species that do lend themselves to the slightly bigger domestic aquarium. Several of the species look very impressive and often have a interesting personality, and they often recognize the aquarist and will become tame over time.
Groupers are predatory fish and eat everything they can swallow; fish, crabs, shrimps and sometimes other invertebrates. Like most large predatory fish they excrete a lot of nutrients to the water, so one therefore needs a good filter system.
Groupers include among others the following genera: Aethaloperca, Cephalopholis, Chromileptes, Epinephelus, Paranthias and Pogonoperca
These fish are like the Groupers predatory fish, but they do not typically, grow so large. They are relatively hardy, but some of the species demand a thorough preperation if one wants to be successful.
Soapfishes are generally very shy and will often hide under an overhang during the day, and hunt at night.
Soapfishes include among others the genera: Grammistes
The most common genera in captivity is Dwarf Seabasses (Serranus) and Hamlets (Hypoplectrus).
See the description of the individual genera below.
|Distribution||Western Atlantic: Belize to Panama; throughout the rest of the Caribbean. Absent off the coast of Venezuela. Antilles (Ref. 26938).|
|English common names||
"Minimum volume" indicates the size of the tank needed to house this species under optimal conditions.
This is based on a medium size animal, which you want to keep for several years.
It might be possible to keep smaller specimens for a limited period in a smaller tank. A larger tank might be needed for fully-grown specimens.
"Hardiness" indicates how resistant this species is to disease and how well i tolerates bad conditions in general.
Some species doesn't handle transportation very well, but that doesn't mean that the species isn't hardy under the right conditions.
In this case, a "normal" aquarium is a reef aquarium with mixed corals or a fish only aquarium with an approximately salinity of 1.026 (sg) and a temperature close to 26°C.
Species requiring more than a 4000-liter tank are considered not suitable for home aquarium.
Special aquariums may cover tanks with low salinity, sub-tropical temperature, deep sand bed, sea grass etc.
Always reef safe: No sources indicate that this species will harm corals or other invertebrates.
Often reef safe: Only a few aquarists has reported problems keeping this species with corals and other invertebrates.
Reef safe with caution: This species may be a threat to some types of invertebrates.
Reef safe with luck: Most specimens will harm corals and/or other invertebrates, but you might be lucky.
Not reef safe: This species is a threat to most corals and/or other invertebrates.