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Livebearers are fish that retain their eggs inside their bodies until the young are fully developed and then give birth to live, free-swimming offspring rather than laying eggs. This reproductive method is common among popular aquarium species such as guppies, mollies, platies, Endler's livebearers, swordtails, and mosquitofish.
It is advisable to keep several pairs of the same livebearer species together to minimise aggression and promote a healthy social environment. The exact number depends on the tank size and species, but maintaining multiple males and females helps ensure harmonious behaviour.
Livebearers offer several benefits including having larger and more developed fry at birth which are easier to care for, higher survival rates of the young, and their hardiness and adaptability to a range of water conditions make them suitable for beginners. They also typically do well in community and planted tanks when there is ample cover for the fry to hide.
