Platy – Breeding and rearing

As uncomplicated as the Platy is in keeping, he is also in breeding. He belongs to the viviparous tooth carps, which is an absolute speciality in the fish kingdom. This means that the Platy female, contrary to most other fish species, does not spawn, but gives birth to finished young fish.

Necessary conditions

The Platy does not need any special conditions, it usually reproduces itself by itself. Wherever a male and a female animal are kept together, it may only be a matter of time before there are plenty of offspring.

– no special conditions –
reproduces practically by itself

The courtship behavior

The courtship display of these small fish is very unspectacular. This may also be due to the fact that the fish often touch each other outside of the mating ritual and physical contact is not unusual.

Often the male fish simply swims next to a female for a while until she finally lets herself be mated or the fish swims directly towards her and then up and down a few more times in front of her. For fertilization Platy males use the so-called gonopodium, a reshaping of the anal fin. The female can store sperm and can have several litters with one mating.

Spawning behaviour

Platys do not spawn, they give birth. The pregnant female can be recognized by her clearly increasing belly circumference. In addition, dark discolorations appear on the excretory organs about one week before birth. Immediately before the birth process the female becomes clearly nervous and then stays almost only near the ground. At least 80 to 100 Platys are born per litter, often more. The young fish are already relatively large at birth and look like real small fish. Quite different from the larvae of many other fish species. The gestation period of the platys lasts about 24 days.

  • are born alive
  • 80 to 100 or even more kittens per litter

Brood care and feeding

Since the fish are already quite finished and come to the world independently, no certain brood-care is pursued. On the contrary, the adults usually even chase their own offspring, which means they eat them. If you want to save as many platys as possible, you should fish them and put them into a separate breeding tank. If this does not happen, there will still be enough specimens to survive due to the large number of young fish per litter.

It is important that the small ones have many hiding places in the tank due to plants and decorations.
Small platys can be supported with special food for young fish. There are special flake foods, but also suitable live food offers. In addition, the fish like to take the powder of the spirulina algae.

  • no brood care by old animals
  • Young fish are hunted and eaten
  • can be supported with special feeds

Rearing of young fish

Young platys can grow up alone in special breeding tanks quite uncomplicatedly or a part of the aquarium is separated for them. From a size of 3 cm on they can be let to the adults or other fish without problems.

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