- Body Shape: Pregnant guppies have a noticeably round or swollen abdomen, which is where they carry their developing fry.
- Dark Spot (Gravid Spot): As a guppy's pregnancy advances, a dark spot will appear near the anal fin. This spot is known as the gravid spot and it intensifies in color as the pregnancy progresses.
- Behavior Changes: Pregnant guppies may exhibit subtle changes in behavior, such as spending more time near the bottom of the tank or hiding among plants. They may also become less active or eat less than usual.
- Size and Color: Pregnant guppies might appear slightly larger than usual and their coloration may become more intense.
- Time Frame: Guppy pregnancies typically last around 21 to 30 days. The exact duration can vary depending on the guppy's age, health, and environmental factors.
If you observe these signs, it is likely that your guppy is pregnant. Providing a suitable environment with hiding spots and live plants, as well as a varied diet, can help ensure a successful pregnancy and delivery.