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What is the most aggressive fish for an aquarium?

10 Most Aggressive Freshwater Aquarium Fish

  • Piranha. Piranha.
  • Arowana (Silver & Asian) Arowana (source)
  • African Cichlids. African Cichlids.
  • Oscar Fish. Oscar Fish.
  • Rainbow Shark. Rainbow Shark (source – CC BY-SA 4.0)
  • Red Tailed Shark. Red Tailed Shark.
  • Flowerhorn. Flowerhorn (source – CC BY-SA 4.0)
  • Tiger Barb.

What freshwater fish are carnivores?

Carnivorous Freshwater Aquarium Fish – Common Species & Diet

  • Angelfish (Pterophyllum scalare)
  • Oscar fish (Astronotus ocellatus)
  • Discus (Symphysodon)
  • Killifish (Cyprinodontiformes Family)
  • Jack Dempsey cichlid (Rocio octofasciata)

What fish are carnivores?

Some of the most common carnivorous aquarium fish are specific types of cichlid, arrowana, and piranhas. Live food and frozen food, like feeder fish, brine shrimp, mosquito larvae, worms, mollusks, and other invertebrates should regularly be offered to your carnivorous fish.

What is the hardest fish to keep as a pet?

Carassius auratus – common and fancy goldfish Goldfish are one of the most popular aquarium fish species, but they are pretty hard to properly care for. Neither common goldfish nor fancies can live in a bowl. Commons are mainly pond fish, and fancies need at least around 20 gallons (75L) per fish to thrive.

Which fish will eat other fish?

Oscars are likely to eat other fish in a community tank if they’re small enough. They will also eat shrimp and snails in the tank. While they are best living with other Oscars, you can put them in a large community tank with peaceful fish of the same size like other cichlids, arowanas and plecos.

What fish lives alone?

Betta fish found very aggressive and mostly kept alone due to their dynamic personalities. They may harm other fishes and may get them injured. That’s why they like to stay lonely in the same tank. There are a few species that may remain with them, including Guppies, Cory Catfish, Ghost Shrimp, and a few others.

What’s the easiest fish to keep alive?

FRESHWATER FISH

  1. GOLDFISH. Yes, the goldfish is top on the list.
  2. GUPPIES. Small and brightly colored, guppies are another favorite for beginner aquariums.
  3. ZEBRA DANIOS. With their zebra patterning, high energy, and fun personality, Danios are another popular fish among new owners.
  4. BUSHYNOSE PLECOS.
  5. NEON TETRAS.
  6. MOLLIES.

Is Mackerel a predatory fish?

Mackerel are a fast predatory fish, closely related to tuna.

Is Cod a predatory fish?

Heavy fishing of cod in the 1990s and the collapse of American and Canadian cod stocks resulted in trophic cascades. As cod are apex predators, overfishing them removed a significant predatory pressure on other Atlantic fish and crustacean species.