Creepy Freshwater Aquarium Fish That You Simply Must Have

Last Updated on January 13, 2022 by Fabiola L.

Looking for beautiful but creepy freshwater aquarium fish that you can add to your aquarium? Click to find out our favorites.

Many believe that aquariums usually have only beautiful and ordinary fish and a few plants and caves. However, this is not always the case! You can include some of the rarest, most beautiful, and most exotic species you can imagine in your home aquarium. Do you know what’s best of all? They usually cost much less, are less susceptible to serious illness, and are also easier to care for.

Do you want to add beautiful but also creepy freshwater aquarium fish to your aquarium? Keep reading to learn more and choose the ideal one more easily.

GloFish Danio

  • Size: up to 2.5 inches
  • Life expectancy: 3-5 years
  • Tank size: at least 10 gallons
  • Water temperature: From 64 ° to 75 ° Fahrenheit
  • Care: Easy

If you are looking for a unique freshwater aquarium fish, GloFish Danios is the ideal choice. They are the brightest and eye-catching freshwater fishes you can get.

In terms of colors, captive-bred danios are available in super-bright red, green, orange, blue, and purple. You don’t have to be afraid, its color is produced by genetics, so it is not artificial. Moreover, it is completely natural and will not fade with time.

GloFish Danio is omnivorous. They eat a diet based on tropical flakes and frozen, meaty foods. They prefer to stay in small schools in species-only tanks. Also, make sure that you keep them with other non-aggressive companions.

Elephantnose Fish

  • Size: 9 inches
  • Life expectancy: 6 to 10 years
  • Tank size: 50+ gallons
  • Water temperature: From 73 ° to 80 ° Fahrenheit
  • Care: Intermediate

Elephantnose fish is often considered to be the weirdest freshwater fish. They are incredibly unique and are among the most exotic freshwater fish. They owe their name to their trunk-like mouth extensions that they use for feeding, communication, and self-defense.

Unfortunately, they are not suitable for beginners. They prefer muddy, stagnant waters with dense foliage. In addition, they have a rather unusual feeding schedule that must be done at night because they are most active during that period.

In addition, they have a rather unusual feeding schedule that must be done at night. They feed on live bloodworms, mosquito larvae, black flies, care shrimp; some may eat flakes or frozen food as well.

creepy freshwater aquarium fish

American Flagfish

  • Size: 2.5 inches
  • Life expectancy: 2 to 3 years
  • Tank size: 10 gallons
  • Water temperature: From 66 ° to 72 ° Fahrenheit
  • Care: Easy

The American Flagfish is known for both its algae-eating services and its stunning colors. It is so named because it looks very similar to the American flag. The body has alternating red and creamy green stripes that stretch horizontally and shimmering shells reminiscent of stars on the flag. Precisely because of its appearance, it is considered to be the coolest freshwater aquarium fish.

These unique fish feed on live food, including white worms, shrimp, tubifex, frozen meaty foods, and tropical flakes. Since they are algae-eaters, make sure their diet is rich in algae wafers. The American flagfish thrives well in community aquariums and even in small outdoor ponds. It also prefers dense planting and cover provided by floating plants.

Indian Glassfish

  • Size: 5 inches
  • Life expectancy: 8 years
  • Tank size: at least 30 gallons
  • Water temperature: From 72 ° to 80 ° Fahrenheit
  • Care: Moderate

If you are looking for the coolest freshwater aquarium fish – opt for Indian Glassfish. They are special because they are such unusual and almost transparent species of fish.

The Indian Glassfish lives exclusively in flocks. They require a well-oxygenated tank with excellent filtration and plenty of open space for swimming. As for diet, they are omnivorous, meaning they eat a variety of staple aquarium fish foods, such as tropical flake, pellets, fresh, or frozen foods.

There is one thing you need to pay attention to when stocking your aquarium – they are known to eat smaller tetras.

Crowntail Betta Fish

  • Size: 2.5 inches
  • Life expectancy: 4 years
  • Tank size: Nano tank
  • Water temperature: From 75 ° to 86 ° Fahrenheit
  • Care: Easy

The Crowntail betta captures attention with its exceptional appearance. They are extremely intelligent and require plenty of stimulation in the form of toys, plants, caves, and other decorations.

As for the aquarium tank, it doesn’t have to be big, but it does have to have an effective filtration system to keep the water clean. You also need to pay attention to the temperature as these beautiful creatures are sensitive to sudden changes.

Crowntail bettas are carnivores, but they also enjoy grazing algae. Their diet is based on high-quality food in flakes, freeze-dried and frozen bloodworms, shrimps as well as mosquito larvae.

Be careful not to put two male Betta fish together. On the other hand, individuals will be fine if kept in a peaceful community of fish of similar size.

Flowerhorn Cichlid

  • Size: 10 inches
  • Life expectancy: up to 12 years
  • Tank size: at least 50 gallons
  • Water temperature: From 72 ° to 80 ° Fahrenheit
  • Care: Easy

If you are looking for creepy freshwater aquarium fish, get Flowerhorn Cichlid. They owe their name to the brightly colored hump that grows on their head.

They are very aggressive and not suitable for life in a peaceful community tank, as they will eat invertebrates and smaller fish species. In addition, they can be destructive in a planted tank. Therefore, all living plants must be fixed in pots to protect their roots from their digging activities.

Cichlid Flowerhorn loves to play a game of hiding among the rocky terrain. Make sure the surface of the tank is sandy so that the fish can dig without the possibility of injury. They are omnivorous and thus prefer cichlid pellets, flake foods, and frozen bloodworms, ocean plankton, and tubifex.

In Conclusion

This was our list of favorites of beautiful but creepy freshwater aquarium fish. The vast majority of them require little maintenance and are suitable for beginners. They are so unique, beautiful, and weird that they will be a great addition to almost any peaceful community (although some are real villains). We tried to find something for everyone here.

Did we forget to mention your favorite species of creepy freshwater aquarium fish? Let us know in the comments below. We are expecting you!

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