live bearing fish have a common trait of harassing the females
of their species even though the females of the species are typically
larger than the males. This can be avoided by a mix of 2-3 females for
every male. Plants are also beneficial. They give the females places to
Most live bearing species are easy to spawn. They will readily
spawn in community tanks. They don’t need specific conditions
spawning like many egg laying species. Males have the addition of a
modified anal fin known as a gonopodium that is used in reproduction.
Females are prone to having gravid spots that tend to become larger
when they are carrying eggs.
Not all female platies have gravid spots. If you are unable to sex your
platies just put the entire group in a breeding tank.
Another trait common to live bearers is that they have a tendency
of eating their fry. This can be easily avoided with the use of a
breeding trap. Simply place the impregnated female into the top
compartment of the breeding trap. The fry will fall into the fry
compartment below. Once the female is done giving birth, remove all the
adults from the breeding tank and release the fry.
Fry can be fed newly hatched brine shrimp, powdered fry food or
small amounts of powdered eggs. Plati fry develop quickly. Typically in
about four weeks.
For a distinctive fish variety individual to your aquarium,
crossbreed the more exotic platies with swordtails
Not only will it be
fun. It will give you serious bragging rights as an aquarium owner.
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