Platy
Xiphophorus maculatus
beginner careOverview
The platy (Xiphophorus maculatus) is one of the friendliest fish in the hobby — hardy, endlessly colourful and completely peaceful. Available in reds, yellows, blues, wagtails and countless patterns, platies are compact, active and forgiving, which makes them a superb beginner livebearer. Like their relatives they breed readily, so the only real planning is around a growing population.
Tank & water
A group is happy in 54 litres (14 gallons) or more. Platies are active but small, and appreciate a planted tank with open swimming room.
- Temperature: 22–26 °C, held with a heater; they tolerate the cooler end of tropical well.
- Water: hard and neutral to alkaline, pH 7.0–8.0; most tap water suits them.
- Filtration: a gentle to moderate filter keeps water clean.
- Planted: fine-leaved and floating plants give fry cover and show off the adults’ colour.
Feeding
Platies are easy omnivores with a healthy appetite for vegetable matter. Feed a quality flake or pellet with good plant content, plus blanched vegetables and frozen or live treats such as daphnia, brine shrimp and bloodworm. They also graze on soft algae, which helps keep the glass and decor tidy. A varied diet keeps their colours vivid and their immune systems strong. Feed small amounts once or twice a day and skip a day occasionally to avoid overfeeding.
Tankmates
Peaceful and sociable, platies mix beautifully with other calm community fish: mollies, swordtails, guppies, corydoras, small rasboras and peaceful tetras. Avoid aggressive fish and fin-nippers. Their easy temperament makes them one of the most flexible community choices.
Colourful, tough and good-natured, the platy is one of the very best fish for a first cycled community — see our beginner aquarium picks.
Platy — frequently asked questions
Are platies good for beginners?
Excellent. Platies are hardy, peaceful, colourful and undemanding, tolerating a wide range of conditions as long as the water is hard and stable. They are one of the best first livebearers, and unlike some relatives they stay small and easy.
Do platies breed as fast as guppies?
They breed freely — like all livebearers, a mixed group produces fry regularly. Broods are a little smaller and less frequent than guppies, but numbers still climb. Keep a single sex or more females than males and plan for the young.
What is the difference between a platy and a swordtail?
They are close relatives in the same genus and interbreed readily. Platies are smaller and rounder with no sword, while swordtails are larger and the males carry the long tail extension. Platies suit smaller tanks.
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