Determining fish pregnancy is crucial for successful breeding and maintaining a healthy aquarium ecosystem. Observing specific physical and behavioral changes can help identify whether a female fish is pregnant.
Pregnant fish exhibit an enlarged abdomen, which appears swollen and rounded. The gravid spot, a dark area near the anal fin, becomes more prominent as the eggs develop. Additionally, pregnant fish may display nesting behaviors, such as selecting and cleaning a specific area of the tank or constructing bubble nests.