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Aggressive

659 products
Jewel Damselfish
(Microspathodon chrysurus)
Starting at $24.99
…Jewelfish, is black with sparkling blue dots. As the fish matures, it may turn brown to yellow and have smaller, indistinct spots.It is overly aggressive, and therefore, only one should be kept per tank. An aquarium of 50 gallons or larger provides suitable housing.The Jewel Damselfish feeds on a…
Ocellate Damselfish
(Pomacentrus vaiuli)
Starting at $27.99
…at the lower rear edge. A 30 gallon or larger aquarium with plenty of hiding places is suitable. Due to its aggressive behavior as an adult, it will do well with other moderately aggressive fish in a community aquarium. It will not harm invertebrates or disturb the tank setting. Offer the Ocellate…
Niger Triggerfish
(Odonus niger)
Starting at $29.99
…caves for hiding, and may rearrange the landscaping and rocks. It vocalizes using a "grunting" sound. They are a great active fish for the more aggressive, fish-only display.The Niger Triggerfish needs a varied diet of meaty foods including; squid, krill, clams, small fish and hard shelled shrimp to…
Red Diana Hogfish
(Bodianus diana)
Starting at $69.99
…spots on the back along the dorsal fin.A 150 gallon or larger aquarium with plenty of hiding places provides a good environment. It is very aggressive and should not be housed with smaller, docile fish that are easily bullied.Red Diana Hogfish diet consists of meaty foods such as snails, worms,…
Sunburst Fire Lobster
(Procambarus clarkii)
Starting at $79.99
…of at least 50 gallons with plenty of rocks, and a substrate with a moderate grain size or finer for the Lobster to burrow in. They can be aggressive towards their own kind, and require plenty of room for territories, and a larger aquarium will be needed if housing more than one. When housing…
Silver Arowana
(Osteoglossum bicirrhosum)
Starting at $44.99
…is responsible for carrying the large eggs in his mouth where they mature in 50 to 60 days. When young, these fish are easily harassed by more aggressive species such as Cichlids. Knifefish, large Plecostomus, Catfish, and Ornate Bichirs make good tank mates for the Silver Arowana.A carnivore, the…
Longspine Urchin, Black
(Diadema setosum)
Starting at $19.99
aggressive fish.Provide an aquarium with ample hiding places and room to roam. Being a nocturnal creature, the Black Longspine Urchin will hide during the day and only come out at night to forage for food such as algae and seaweed. These urchins are an excellent algae controller for an aggressive
Red Tail Barracuda
(Acestrorhynchus falcatus)
Starting at $54.99
…and soft water. There should be plenty of open swimming areas. A vicious predator, the Red Tail Barracuda should only be housed with other more aggressive predacious fish of similar size. Ideally, it is best to not place this species with territorial species of Cichlids.The breeding habits of this…
Figure 8 Puffer
(Tetraodon biocellatus)
Starting at $5.99
…(either real or plastic), rocks with plenty of hiding places, and a sandy bottom composed of an aragonite-based sand. The Figure 8 Puffer can be aggressive to members of its own species, so care should be taken when housed together.Spawning occurs in brackish water. The eggs will be laid on the…
Cuvier Bichir, Captive-Bred
(Polypterus senegalus)
Starting at $18.99
…aquarium with other large, passive fish. When provided with plenty of open swimming areas, rocks and crevices, the Cuvier Bichir is not usually aggressive toward tank mates. This species is semi-aggressive in the fact that they will swallow any fish or invertebrate that they can fit into their…
Jeweled Moray Eel
(Muraena lentiginosa)
Starting at $129.99
…for hiding is ideal for the Jeweled Moray. Most of the eels that are lost in an aquarium are due to poorly sealed tanks. These eels are very aggressive in the aquarium, and will eat any fish, crustacean or other eel that it can swallow. The Jeweled Eel is a nocturnal predator, ambushing fish and…
Cubicus Boxfish
(Ostracion cubicus)
Starting at $27.99
The Cubicus Boxfish is also referred to as the Yellow Boxfish, Polka Dot Boxfish, or Cube Boxfish. The juvenile form is easily identifiable as having a yellow box-shaped body with brown spots. As an adult, the yellow will fade and become brown. The Cubicus Boxfish is sometimes confused with the…
Ochrestriped Cardinalfish
(Ostorhinchus compressus)
Starting at $18.99
The Ochrestriped Cardinalfish comes from the reefs of Fiji or Indonesia. They have a long slender shape and are an ochre-red with gold color. The large black and blue eyes are offset by a black spot near the tail which confuses possible predators which way the fish is facing.A 55-gallon or larger…
Porkfish
(Anisotremus virginicus)
Starting at $29.99
…or ledge for refuge. The Porkfish has been known to occasionally pick parasites from the bodies of tank mates. Do not house the Porkfish with aggressive species, and adults should be the first to be introduced into a community tank. They are not a good candidate for a reef aquarium, as they will…
Elephant Nose
(Gnathonemus petersii)
Starting at $17.99
…become incredibly tame and trusting to the point of being hand-held. It does well with other, larger species of a peaceful nature, but may be aggressive towards those of similar or smaller size.The Elephant Nose is carnivorous and will eat many types of meaty foods including; blood worms, chopped…
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