Hoplerythrinus will accept dry foods such as pellets, freeze-dried shrimp and insects, and sometimes even flake foods more readily than their relatives.Īll wolffish are excellent jumpers and any aquarium must be covered at all times! They can also do well in a community tank with other larger fishes such as catfishes, cichlids and larger characins, such as Myleus and Leporinus. Their swimbladder is not as reduced as much as the other genera, so they are much more surface oriented and active than other wolffish. Unlike Erythrinus and Hoplias these wolffish hunt in roving packs, cornering groups of smaller fish, especially characins, or chasing crustaceans and insects in the substrate or along the surface. It can be kept in a small school in a large aquarium. Hoplerythrinus unitaeniatus is easily identified by its single horizontal stripe and elongate body, and exported occasionally from Peru and Colombia. Assume that an aquarium wolffish belongs to one of five species. Several others are highly endemic and have rarely been exported. Brazil, Colombia and Venezuela don’t export their wolffish species, so the list narrows. Within their genus the species are similar and you’ll need to know where your fish were collected to have an idea of what species belong where. Next is Hoplerythrinus with three species, and Erythrinus with two. aimara and macrophthalmus are separate species, although H. The largest group is the genus Hoplias with 11 species and we assume that H. The sub-family consists of three genera, totalling 16 species. Special rules apply, but these fish are hardy and easy to maintain. The wolffish family has something for everyone: Hoplerythrinus unitaeniatus, the smallest, will reach just over 20cm/8”, while the largest (Hoplias aimara) will reach 130cm/51” and more than 30kg/66lb.ĭespite their reputation wolffish can be good aquarium fish and are surprisingly interesting with other fish or in groups. In the dry season it’s not unusual to find Hoplias the last survivors in an emptying pool. Because the wolffish can breathe air it can survive where few others could. They are part of a characoid sub-family of 16 species, found from Costa Rica to Argentina in nearly every kind of water. This is the family of the Amazon wolffishes and they have many names, including Trairão (sp.’Trai-ron’), Aimara, Guabina and Fasaco. However, South America is home to another group of fish that are far more voracious and much more aggressive. They get nervous when the aquarium is approached and prefer to bite pieces of other fishes’ fins rather than devour them whole. No freshwater fish has a more fearsome reputation than the piranha, but, as many aquarists soon learn, these are actually quite timid. Picture of Wolf Fish - Hoplias malabaricus.Piranhas are pussycats! The Hoplias of South America are the predators to really fear, says Oliver Lucanus. The fry is very aggressive and predatory and have to be sorted according to size to prevent them from eating and killing each other The fry grows very fast and can reach 30 cm / 1 foot in just over 6 months. They are very productive and one spawning can result in over 10 000 fry.
(no vegetables) Hoplias malabaricus (Wolf Fish) are best feed at night.īreeding: Hoplias malabaricus (Wolf Fish) can be breed in large aquariums. Hoplias malabaricus (Wolf Fish) are nocturnal fish.įeeding: Hoplias malabaricus (Wolf Fish) are extremely easy to feed as they will try to eat anything that fits into their mouth. A dark bottom substrate can also be beneficial. Floating plants and dimmed lighting is preferred. The aquarium should be decorated with plenty of hiding places that are big enough for the fish. Water parameters: Temperature 22-25☌ / 72-77✯ pH 6.5 – 8.0Īquarium setup: Hoplias malabaricus (Wolf Fish) needs due to their size and temperament large aquariums or even better ponds. Maximum size: +70 cm / +28 inches ( They only grow to 50 cm / 20 inches in the wild but grows larger then that in aquariums.)Ĭompany: Hoplias malabaricus (Wolf Fish) are due to its aggressive nature most suitable to be kept alone, they can however be kept with other large fishes that are able to stand their ground against this large aggressive species.
Wolf Fish - Hoplias malabaricus Wolf Fish - Hoplias malabaricus
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