Betta fish, known for their stunning appearance, typically prefer solitude in their natural habitat. Adding a betta to a community tank may trigger aggression and agitation. Therefore, it's crucial to add a betta to a community tank correctly. Quarantine the fish for a minimum of two weeks, ensure the tank is clean and prepared to receive the betta, then gradually acclimate the fish to the community tank's water.
Necessary Steps
Incorporating the Fish

Isolate the betta for quarantine before introducing it to the community tank. This allows you to observe the betta's health and prevent the spread of potential illnesses to other tank inhabitants. During the two-week quarantine, monitor the betta's eating habits, activity levels, and watch for signs of parasites or other illnesses. If symptoms arise, consult a vet. Common signs of betta illness include bloating, refusal to eat, fungal growths, fin deterioration, white spots (ich), or a grayish slime. Obtain betta fish from reputable breeders for healthier specimens compared to pet store stock.

Maintain Tank Cleanliness

Ensure your tank is free of algae and debris, and check the filter's cleanliness. Consider using a UV sterilizer to minimize disease risk. Maintain appropriate water parameters and avoid disrupting beneficial bacteria during gravel cleaning.

Introduce Betta to Community

Prepare Betta for Transfer

Gradually Transfer Betta to Tank

Observe Your Fish
Selecting Compatible Fish

Introducing Stimulating Tankmates

Avoiding Aggressive Tankmates

Ensure Compatibility with Tankmates
Selecting Suitable Tankmates for a Betta

Identify Compatible Species

Choosing the Correct Tank Size

Avoid Adding Fin-Nipping Fish

Avoid Adding Colorful Fish

Ensure Similar Environmental Conditions
Useful Tips
Important Reminders
Warnings to Consider
Helpful Advice