Whether betta fish can be kept together depends on factors such as their species, gender, and rearing conditions, and the process requires careful handling. Below are the key points:
1. Species Differences Determine the Feasibility of Mixed Rearing
Chinese Betta Fish: They have a relatively gentle temperament, and group rearing can be attempted. However, the following conditions must be met: the fish tank should be sufficiently large (e.g., 80×40×40 cm), the number of fish should be relatively large (at least 20 fish are recommended), and hiding spots (such as aquatic plants and artificial rock formations) should be set up.
Thai Betta Fish: They are extremely aggressive. Group rearing is generally not recommended, especially since fatal fights are likely to occur between males.
2. Gender and Quantity Control
Female Betta Fish: Female Chinese betta fish can be kept in groups, while caution is needed when grouping female Thai betta fish.
Male Betta Fish: Regardless of the species, male betta fish must be reared individually.
Male-Female Pairing: Male and female betta fish can only coexist for a short period during the breeding season; otherwise, the male fish may attack the female fish.
3. Essential Conditions for Mixed Rearing
Large Water Volume Environment: The water volume should be at least 30 liters, and a rectangular fish tank is preferred.
Adequate Hiding Spots: Aquatic plants, driftwood, and other items can help reduce conflicts between fish.
Gentle Tank Mates: You can choose small tropical fish that swim quickly, such as tiger barbs and molly fish.
4. Risk Reminders
Mixed rearing of betta fish can easily lead to injuries, stress, or even death, so close observation is necessary.
Keeping Thai betta fish individually is the safest option, and strict conditions are still required for grouping Chinese betta fish.
If you want to try mixed rearing, it is recommended to start with Chinese betta fish and prioritize referring to professional rearing guides.