Scientific Name(s): Xiphophorus maculatus
Category: Tropical
Difficulty: *
Maximum Size: 7cms
Minimum Tank Volume: 60 litres
Minimum Tank Size: 24" x 12" x 12"
Water Temperature Range: 20-26°C
Water pH Range: 7.0-8.5
Water Hardness Range: 10-30 dGH

General Information:

Peaceful community fish. Excellent beginner's fish for more alkaline water. Exhibits no aggression, even between males. Now comes in a large variety of line-bred colour morphs and a shoal of these in a planted tank can make a very attractive display. More naturally coloured fish tend to be hardier.

Tank Requirements:

Best kept in a well planted tank as 2 male per 2-3 females to prevent any one female being harassed too much.

Diet Requirements:

Unfussy and will take most foods offered.


Compatible with other peaceful community fish. Can hybridise wih the closely related Swordtail so not advised to keep these two species together.


If you don't want to raise fry, keep Platys as a male only group.

Common Problems:

None as long as water is alkaline and pH always above 7.

Similar Species:
Swordtail, Guppy, Molly


Males have a modified anal fin: the gonopodium, which is used to impregnate the females. Females are larger than males.


Breeds readily as often as every 4-6 weeks with fry born live and free-swimming and up to 80 fry per batch. Fry grow quickly and it's easy to be overrun.

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