How do you find out fish are pregnant?

Here are a few signs that a female fish may be pregnant (gravid):

- Body Shape: As the eggs develop inside, a female's abdomen may become enlarged and more rounded, especially in livebearing species.

- Dark Spot/Gravid Patch: Many livebearing species develop a dark spot or patch near their anal fin. This is where the fertilized eggs are located and is sometimes referred to as the "gravid spot."

- Behavior: Some pregnant fish may become more reclusive or seek hiding places as the time of birth approaches. They might also display protective behavior towards their developing eggs or fry.

- Appetite Changes: Pregnant fish might experience increased or decreased appetite depending on their species and stage of pregnancy.

- Coloration Changes: In some species, female fish may exhibit subtle changes in coloration or patterns as their pregnancy progresses.

Note: It's important to verify the pregnancy through specific characteristics or behaviors related to your particular fish species. The signs listed above are general and might not apply to all types of fish. If you're unsure whether your fish is pregnant, you can consult reliable sources, such as aquarium hobbyist forums or books specific to your fish species, for more accurate information.**