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Home»Molly Fish»Is Red Eye Tetra Aggressive? Discover Their Profile

Is Red Eye Tetra Aggressive? Discover Their Profile

Alex WayneBy Alex WayneSeptember 14, 2023

Is red eye tetra aggressive? This is the frequently first question when aquarists come across their images right at first sight. The fiery red eyes make this fish an ideal choice to enliven your tank, but some aquarists are still concerned about their character. 

Fish keeping is considered an art because adopters have to spend a lot of time and effort to maintain a healthy, clean aquarium and ensure that the tank’s inhabitants get along with others. 

In-depth knowledge of fish species will help you prepare more effective fish farming techniques. This article is for those curious about the red-eye tetra fish!

Contents

  • 1 Red Eye Tetra Fish: Species Summary 
  • 2 Is Red Eye Tetra Aggressive?
  • 3 How Many Red Eye Tetras Should Be Kept Together? 
  • 4 What Fish Can I Keep With Red Eye Tetra?
  • 5 Red Eye Tetra Fish: Proper Care and Tank Requirement   
  • 6 Should You Get A Red Eye Tetra For Your Aquarium?
  • 7 Conclusion

Red Eye Tetra Fish: Species Summary 

Red eye tetra fish belong to the family Characidae, native to the warm seas of South America. They gather several adorable attributes about appearance, characteristics, and lifestyle. They are becoming increasingly sought-after among aquarists, especially in Asia.

You can notice another color combination in their eyes: only 2/3 are red, and the rest is gray. The short round oval body is covered with sparkling silver fins with an average size of about 2.5-2.75 inches. It is followed by a soft transparent tail accented with a jet-black patch. 

The color contrast creates a pretty shimmering effect when they swim in the water. This fish is easily stuck in the viewer’s mind by its unique appearance.

Wild red eye tetra fish can survive up to 5 years. However, The lifespan of tetra sold in tanks or aquaculture can be shorter by about 1-2 years. 

Food selection is fairly easy for omnivores like the red-eyed tetra, and a fusion of pants-based and meat-based foods is highly recommended. You can feed them about 2-3 times/day for them to absorb a moderate amount of nutrition.

Red Eye Tetra Fish

Is Red Eye Tetra Aggressive?

It comes as a surprise that red eye tetras are super easy-going and friendly. Their pleasant traits can adapt well to any home aquarium. 

This tetra type is one of the most good-tempered aquatic fish. Thanks to this advantage, they are usually adopted in groups or kept with other species. The fish is active in the middle of the tank and often swims through dark or shaded areas. 

However, some experienced people have shared that they can mistakenly bite the tail of long-tailed and slow-swimming fish. Apart from this caution, red eye tetra is regarded as an amiable resident in the tank.

How Many Red Eye Tetras Should Be Kept Together? 

If you are bound to adopt only a school of tetras, you are possibly more generous with the number of members. These tetras prefer a swarm environment, so feel free to add more tetras. However, a school of 8-10 is considered ideal for a standard indoor tank.

With smaller tanks, you should still maintain a minimum of 5 for a school of tetras. Too few fish in a group can lead to common mental symptoms in fish, such as loneliness and stress.

Tetras swimming in groups will create beautiful emulsion effects in the water. Occasionally, you can see them separate and move solo in the tank.

How Many Red Eye Tetras Should Be Kept Together? 

What Fish Can I Keep With Red Eye Tetra?

Besides the same species, tetras can still coexist in harmony in a diverse environment. Yet, choosing tankmates needs more attention. As we shared, you should not keep them with long-tailed thin-fin fish (e.g. betta fish) or large, aggressive fish to avoid conflict in the mini marine.

Instead, it would help if you considered species that share the resemblance: pleasant mind, small body size, short tail-fin, and active movement. Tetras can also make good friends with dwellers at the bottom of the tank. Rainbow fish, guppies, barbs, danios, or neon fish can become the optimal choices.

Aquarists are quite fond of combining tetras with other sparkling fin fishes. They swim together and make your tank much more colorful and lively.

Red Eye Tetra Fish: Proper Care and Tank Requirement   

Fortunately, the resistance, resilience, and adaptability of red eye tetras are outstanding. They can quickly adapt to new habitats and endure many changes in living conditions. 

That’s why care practices for these species are not problematic. You just need to follow basic fish care, including tank cleaning, daily diet, and selection of tankmates. 

If you apply some of our recommendations for the tank set-up, your tetras fish can tend to live more happily and healthily.

Should You Get A Red Eye Tetra For Your Aquarium?

Suppose you own a tank greater or equal to 20 gallons of water; you can start putting red eye tetras in. Fish can withstand from alkaline to soft acidic water, so the pH should span from 5.5 to 7. The fish can be facilitated when you maintain the water temperature close to its natural environment: 28-30 degrees Celsius.

In the wild, these fish come from heavily forested areas with little light, so their tanks should be dimly lit. Use a dark substrate and vegetable mulch along the sides and back of the aquarium. 

Decoration possibly evokes the sense of a tropical jungle, with shade and shelter as the main focus. You can choose to buy tree branches that can shade from above.

Meanwhile, hiding spots can be created with dark roots instead of the usual rock cave display.

Should You Get A Red Eye Tetra For Your Aquarium?

If your tank size meets the requirements, you totally give them a try. Tetras grant you several benefits like impressive appearance, gentleness, and simple care techniques. What a wise choice for those starting with fish keeping or breeding!

As mentioned above, tetras thrive better in groups. When buying them, you should buy a school of about 6 instead of raising a single one. This way, the fish can not only maintain mental health, but you can also observe their eye-catching moving effects.

Conclusion

In sum, the concern of red eye tetra aggressive nature are answered in our article. Contrary to popular misconceptions, the red eye tetra is a friendly fish and rarely bumps heads with other inhabitants in the tank community. How you can overlook the gentle fish that make your marine more diverse and glamorous.

If you are a busy fish adopter, you should take a look at red eye tetra more. Care practices can be maintained at the basic level. You just need to satisfy a few water and decoration conditions right at the first stage, and you can let them freely thrive. Are you ready to welcome red eye tetra to your home aquarium?

Alex Wayne
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Alex is a pet freelance writer and editor with more than 10 years of experience. He attended Colorado State University, where he earned a Bachelor’s degree in Biology, which was where he first got some experience in animal nutrition. After graduating from University, Alex began sharing his knowledge as a freelance writer specializing in pets.

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