Betta Splendens: The Fighting Fish
Valerio ChiaradonnaThe Betta splendens , also known as the fighting fish , is one of the most fascinating and beloved species in the aquarium world. Its brilliant colors, flowing fins, and unique personality make it a true aquatic gem. In this article, we'll discover everything about this extraordinary fish: from its characteristics to its care, and tips for keeping it happy and healthy.
🐠 Origin and Natural Habitat
Native to Southeast Asia, Betta splendens is found primarily in Thailand, Cambodia, Vietnam, and Laos. Its natural habitat is the stagnant, poorly oxygenated waters of rice paddies, canals, and swamps. This characteristic has made the Betta a particularly hardy fish, thanks to its ability to breathe directly from the air through its labyrinth organ.
🎨 Breathtaking Variety and Colors
One of the most incredible characteristics of the Betta is the variety of colors and fin shapes. Thanks to the careful selection of breeders, hundreds of variations now exist, including:
Halfmoon – Wide fins that form a 180° arc.
Crowntail – Fins with elongated rays resembling a crown.
Plakat – Short-finned variant, more similar to the wild form.
Double Tail – Two distinct tails for a spectacular effect.
Koi and Marble – Variegated colors similar to Koi fish.
🏠 How to Set Up the Perfect Betta Aquarium
Despite the belief that Bettas can live in small containers, a suitable aquarium is required to ensure their well-being.
The ideal characteristics:
Capacity: Minimum 10-15 litres for a single specimen.
Temperature: 24-28°C, so a heater is needed.
Filtration: Necessary, but with a gentle flow to avoid stressing the fish.
Furnishings: Real plants, hiding places, and resting surfaces.
Water: pH between 6.5 and 7.5, with weekly changes of 20-30%.
🍽 Betta Diet and Nutrition
Bettas are carnivorous fish and their diet should be varied and nutritious. Some recommended foods:
Live or frozen food (daphnia, artemia, mosquito larvae).
Specific pellet feed , preferably high quality.
Avoid flakes and low-quality foods , which can cause digestive problems.
A short weekly fast helps prevent intestinal problems.
⚔️ Behavior and Coexistence
The name "fighting fish" is no coincidence: males are extremely territorial and aggressive towards each other, so much so that they will fight to the death. For this reason , they should never be kept together in the same aquarium .
However, they can coexist with other peaceful species, such as:
Corydoras
Rasbora
Caridina (shrimp, but beware of the risk of predation)
It is best to avoid long-finned fish (such as guppies and angelfish), which could be attacked.
💕 Breeding of Betta Splendens
Betta reproduction is fascinating but complex. The male builds a bubble nest on the surface of the water and attracts the female. After mating, he collects the eggs and guards them in the nest until they hatch.
After spawning, the female should be removed to prevent the male from attacking her. The fry should be fed infusoria and microfood until they are old enough to eat baby brine shrimp.
🚨 Common Mistakes to Avoid
Keeping Betta in bowls without a heater or filter ❌
Putting two males together ❌
Feed him only flakes or low-quality food ❌
Don't perform regular water changes ❌
Adding aggressive or finned fish ❌
The Betta splendens is an extraordinary fish that, with proper care, can live for several years displaying all its splendor. By providing it with a suitable environment, proper nutrition, and daily attention, you can enjoy the beauty and unique character of this fascinating aquarium dweller.
Do you have a Betta? Tell us about your experience in the comments! 👇🐠
If you are looking for the ideal aquarium for your Betta splendens , at Animal Instinct we offer starter kits designed specifically to meet the needs of these fascinating fish.
Our desktop aquariums combine compact design with advanced features, including:
- Integrated LED Lighting: Enhances your Betta's vibrant colors, creating a relaxing visual effect.
- Efficient Filtration System: Keeps water clean, ensuring a healthy environment for your fish.
- Easy installation: ideal even for those who are new to aquarium keeping.
These kits are perfect for adding a touch of nature to your work or home space, while providing an optimal habitat for your Betta.
For more details and to discover our full selection, visit our Animal Instinct website.

1 comment
Ciao ho già un acquario da 60 l circa con filtro AMTRA BOX BOACK 150 e riscaldatore AMTRA KLIMA 75. Vorrei chiederti se voi fate un kit per allestimento senza l’acquario, dato che ce l’ho già. Attendo un vostro riscontro buona giornata.