Will betta fish kill goldfish if kept in the same aquarium? All You Need to Know (2023)

5/5 - (1 vote)

Two of the most popular fish among aquarium lovers around the world are Betta fish and Goldfish. Bettas are aggressive fish and prefer to be alone. On the other hand, goldfish are calm and gentle in nature. Because of this opposite nature, you cannot keep them together in the same aquarium. If keep goldfish with betta fish, Betta fish attack goldfish. Finally betta fish kill goldfish.

There are many reasons why betta fish should not be kept with any goldfish. Betta fish and goldfish are two different species of fish. Their food habits and habitats are different. They prefer different temperatures. Today the topic of our post is Can betta fish kill goldfish. To know more about it read this post till the end.

Bettas are small in size. But for their bright colors and attractive fins they easily attract everyone’s attention. In their natural habitat, male bettas establish and defend their territory. Betta fish cannot tolerate anyone else entering their habitat. If someone else enters their territory they show aggressive behavior.

Goldfish are also popular because of their attractive appearance and color. There are many species of goldfish. Given the right environment and a balanced diet, some goldfish can grow quite large. They can grow up to 12-14 inches (30-35 cm) or more in length. Goldfish are omnivores. They eat both plant matter and small aquatic animals. They are generally peaceful and social fish. They enjoy the company of other fish.

Betta fish and goldfish have some similarities. Both are freshwater fish. Both can take oxygen directly from the air to carry out respiration. Both fish are considered relatively hardy fish.

Despite some similarities, betta fish and goldfish have distinct differences in their natural habitat, feeding habits, behavior, and physical characteristics. This is why they need to be cared for differently.

Generally, if betta fish are kept with goldfish, the betta fish attack and injure the goldfish. Finally betta fish kill goldfish. In many areas, the opposite can also happen. Goldfish are omnivores. Some goldfish grow in size. If you keep betta fish with larger goldfish, the goldfish may eat the betta.

Can goldfish and betta live together in the same Aquarium?

Are you thinking of keeping goldfish and beta fish together in your aquarium? So before making a decision, it is necessary to know a few things about them.

Basic general information about betta fish

Betta fish, also known as the Siamese fighting fish. This fish like to live in warm water. Currently, there are about 75 species of beta fish. Most are hybrids (captive breeding). This resulted in stunning colors and beautiful fins. The native habitat of Betta fish in Southeast Asia. They prefer to live in calm water without currents. They live in shallow water and swim slowly. The native habitat of Betta fish is Southeast Asia. They are fish belonging to the Gogharami family.

Betta fish tank selection

Regular maintenance is necessary to keep betta fish healthy. The first step in maintenance is tank selection. The size of the tank should be such that the betta fish can swim comfortably. A tank of 2 to 5 gallons is ideal for betta fish. They can jump high. People even train this fish to jump. That’s why the tank should have a tight-fitting lid to prevent the fish from jumping out.

Maintenance of betta fish tank

It is very important to keep the betta fish tank clean regularly. Change the water at least twice a month to ensure that the fish have clean water. Keep it away from direct sunlight. When changing the water in the tank, do not change all the water at once. Keep at least 25% water. The pH should be between 6.5 and 8. Try to keep the temperature at 22-26°C.

Filter for betta fish

A betta fish can range from 2 to 5 inches. Tail size varies from one fish to another but, generally speaking, healthy fish have larger tails. It is very good to have a filter in the betta fish tank. The filter will keep the tank clean, which will save you a lot of work, save you time and keep the fish healthy and happy. Betta fish like to live in water without current, so use a filter in the betta fish tank so that the water does not move too much and noise is reduced.

Characteristics of Betta Fish

What Do Betta Fish Eat

Betta fish are carnivorous. They eat insects, insect larvae, brine shrimp, and small fish scraps. Your betta fish will be happy if you feed them high-protein freeze-dried and frozen foods.

The Lifespan of Betta Fish

Betta fish can live for two to five years if given the right environment and the right food.

Level of careEasy and simple
TemperamentAggressive behavior
Lifespan 2-5 years
Size 2-5 Inches
Food/Diet Preferred live foods, Carnivorous
FamilyGogharami family
Tank size 2-5 Gallons
Water Freshwater
pHbetween 6.5 and 8
Temperature22-26°C / 71 to 77 F
OriginCambodia, Thailand
Scientific NameBetta splendens
Chart about Betta fish

Basic general information about Goldfish

Goldfish is one of the most popular fish among aquarium lovers. There are about 125 species of goldfish. All of these are produced through captive breeding.

Goldfish tank selection

A 10-gallon tank is usually good for a goldfish. If you want to keep five to six goldfish in the same tank, you should choose a 50 to 60 gallons tank. Goldfish like to swim so there should be plenty of room for them to swim in their tank. Goldfish are known as dirty fish. They produce large amounts of waste, raising ammonia levels. That is why you should select a tank that is easy to clean.

Maintenance of goldfish tank

It is very important to clean the goldfish tank regularly, it should be cleaned at least once a week. You should have at least five gallons of water for every inch of goldfish. As with any fish, when changing the water in a goldfish tank, not all the water should be changed. At least 25% water should be retained. Goldfish are mostly considered cold-water fish. They do best at temperatures of 65° to 75° F. The pH should be between 6.5 to 7.5.

Filter for Goldfish

A filter must be installed in the goldfish tank. Because goldfish produce a lot of waste. That’s why goldfish are also called dirty fish. Many people ask what type of filter should be used for goldfish. It depends on two things firstly the size of your aquarium and secondly how many fishes are in the aquarium and what size they are. Mainly two types of filters are available external and internal filters. The size of the filter is not important. What matters is its flow rate. The amount of water filtered per hour is called the flow rate. Suppose you have a 50-gallon tank. In that case, you should install a filter that can filter 50 gallons of water 5 times an hour.

To know more CLICK HERE

Characteristics of Goldfish

What Do GoldFish Eat

Goldfish are omnivores. Naturally, they eat plants, insects, and sometimes small fish. So you should try to feed your goldfish the food they normally eat. Your goldfish will like to eat shell-removed peas, boiled vegetables, bloodworms, and brine shrimp. You can feed goldfish food available at aquarium stores.

The Lifespan of GoldFish

The average lifespan of goldfish is 10-15 years. They are hardy fish and they can live a long time. How long a goldfish can live depends on how well you take care of them. Goldfish can grow up to 4-8 inches in captivity and 12 inches in the wild

Level of careEasy and simple
TemperamentPeaceful coexists with any fish
Lifespan 10-15 years
Size 4-12 Inches
Food/Diet Preferred live foods vegetables, fruits, Omnivores
FamilyCarp family
Tank size 5 Gallons per Goldfish
Water Freshwater
pH7.5 between 6.5 and 8
Temperature18 -23°C / 65° to 75° F
OriginAncient China
Scientific NameCarassius auratus
Chart about Goldfish

Can betta fish kill goldfish? To have a proper idea about this we need to have a comparative discussion between the two fishes

Betta Fish Life Cycle

Compare Between Betta Fish and Goldfish

Why do betta fish kill goldfish?

Betta fish are aggressive whereas goldfish are peaceful and social animals.

Betta fish do not grow large whereas goldfish can grow in size.

Betta fish have a short life span whereas goldfish can live for around 15 years.

Betta fish are perfect for smaller tanks where goldfish need a larger area.

Betta Fish Carnivorous Goldfish are omnivores.

CLICK HERE To know where Do Betta Fish Come From?

Betta fish prefer warm temperatures while Goldfish prefer to live in temperate waters.

Betta fish kill goldfish by repeatedly attacking. Goldfish are omnivorous and can eat betta fish due to their large size.

Goldfish produce a lot of waste, increasing ammonia levels in tank water. It is harmful to betta fish.

To know more facts about Betta fish CLICK HERE

Will betta fish kill Goldfish?

Final words

From the above discussion, it is clear that there are many differences in lifestyle between betta fish and goldfish. That’s why betta fish and goldfish should never be kept together. A betta fish can kill goldfish. On the other hand, large goldfish can swallow betta fish. This is why no aquarium expert will advise you to keep goldfish and betta fish together.

We all love our pets so much. If they suffer any damage due to our carelessness or negligence that would be a very excruciatingly sad event. That’s why we should have some knowledge about pets and take care accordingly.

Question:- What food is best for my betta fish?

Answer:- Betta fish are carnivorous. They eat insects, insect larvae, brine shrimp, and small fish scraps, betta flakes, and pellets.

Question:- What food is best for my Goldfish?

Answer:- Goldfish are omnivores. Your goldfish will like to eat shell-removed peas, boiled vegetables, bloodworms, and brine shrimp.

Question:- Is it better to feed goldfish flakes or pellets?

Answer:- It is always better to feed your goldfish pills instead of flakes. Pellets come in a variety of sizes, so you’ll likely find one that fits the size of your fish.

Question:- How many times a day should a betta fish be fed?

Answer:- Betta fish should be fed twice a day. You can eat a pinch in the morning and a small pinch in the evening. You should make sure not to overfeed them. Excess food will become waste and build up toxins that are harmful to fish.

Question:- Why do betta fish attack other fish?

Answer:- Why betta fish attack other fish is debated. Generally betta fish fight to establish a territory with access to food resources, and shelter.

Leave a Comment

Sharing Is Caring: