Description:
The Platy fish prized for its resilience and activity. Its robust size for a smaller fish species, attractive appearance, and versatility make it exceedingly popular among fish keepers. Platies come in a wide variety of vibrant colours and add a visually captivating element to any aquarium setting.
Distinguishing between male and female Platies is found by examining their anal fins: females feature a fan shaped anal fin, whereas males exhibit a longer, flat, and pointed anal fin. Females are also generally more robust in size compared to their male counterparts.
Temperament:
Platies are known for their peaceful and sociable temperament, making them excellent inhabitants for community aquariums. They generally coexist harmoniously with other fish species of similar size and temperament. Their peaceful nature extends to interactions within their own species, typically avoiding aggression or territorial behaviour except in rare instances of overcrowding or insufficient hiding spots.
Primarily driven by its dual instincts for feeding and breeding, the Platy is a live-bearing species akin to guppies. Breeding Platies is remarkably straightforward, as they exhibit a perpetual readiness to reproduce. Females possess the unique ability to store sperm for extended periods, resulting in frequent live births of 10-40 fry every 4 to 6 weeks, with occasional broods reaching up to 80 fry. While parental cannibalism is uncommon, it is advisable to house pregnant females in a separate tank or breeding enclosure to ensure the survival of offspring.
Diet:
In their natural habitat, Platies sustain themselves on a diet of algae and small insects, providing them with essential fibre and protein. In captivity, it is important to offer a well-rounded diet to maintain their health. High-quality foods such as Xtreme Community Crave Flakes make an excellent staple, while Xtreme Spirulina Flakes help provide important plant-based nutrition if used along side a meat based flake or pellet such as Xtreme Nice Semi-Floating Pellets.
Supplementing their diet with live or frozen foods such as brine shrimp and bloodworms will further enhance their condition and colouration. Vegetable matter and algae-based foods should also be included regularly to support their overall dietary needs.
Breeding Behaviour:
Livebearers, such as Platies are some of the easiest fish to breed in the aquarium hobby. Unlike egg-laying species, livebearers give birth to fully-formed, free-swimming fry, making the process simple but also potentially overwhelming due to how quickly populations can grow.
Males constantly court females by displaying their colourful fins and using their gonopodium (a modified anal fin) to transfer sperm. Females can store sperm internally for several months, meaning a single successful mating can result in multiple batches of fry without needing a male present for every pregnancy.
Once pregnant, the female will begin to develop a gravid spot, a dark area near her anal fin and her belly will grow much rounder. Gestation usually lasts around 4 weeks, depending on species and temperature. Just before giving birth, the female may isolate herself in a quiet area of the tank or behave restlessly.
When she gives birth, the fry are immediately free-swimming and capable of feeding on tiny foods such as powdered fry food, crushed flakes, or baby brine shrimp. However, adult fish (including the parents) will often eat the newborn fry if given the chance. To improve survival rates, provide dense plants like java moss, hornwort, guppy grass, or any fast growing floating plant for hiding, or move the pregnant female to a separate breeding tank shortly before she gives birth.
Females can give birth to anywhere from about 20 to 50 fry in a single batch depending on their size, age, and health. After giving birth, she can be returned to the main tank, while the fry remain in their own tank or nursery area until they are large enough to avoid being eaten.
Care Guide:
- Species – Xiphophorus maculatus
- Common Name – Platy
- Origin – East coast of Central America and southern Mexico
- Temperament – Peaceful
- Diet – Omnivore
- Minimum Tank Requirement – 35 litres
- Tank Level – Preferred middle dweller – every level
- Care Level – Easy
- PH Range – 6.8 – 8.5
- Temperature – Cold to tropical 15–28°C
- Breed Type – Livebearer – reproduce rapidly
- Size – Grows to approximately 7–8cm
- Sex – Un-sexed
Acclimation Guide:
- Float the Bag: Place the unopened bag in your tank and let it float for 15–20 minutes. This lets the water inside the bag slowly match your tank’s temperature.
- Turn Off the Lights: Keep the aquarium lights off during this process. It helps keep things calm and prevents sudden temperature changes.
- Add a Bit of Tank Water: After floating, carefully open the bag and pour out about half the water into a sink or bucket (not into your tank). Then, slowly add small amounts of your tank water into the bag over 15–20 minutes. This helps your fish adjust to the new water conditions.
- Gently Move the Fish: Use a fish net to gently move your fish from the bag into the tank. Try not to pour the bag water into your tank — this helps keep your aquarium clean and healthy.
- Watch and Wait: It’s normal for fish to hide or act a bit shy at first. Keep an eye on them, and avoid doing a water change for the first 24 hours to give them time to settle in.
- Feeding Behaviour: New fish may not eat any food for the first 12-24 hours whilst it is settling into its new environment, please allow some time before feeding as the food may go to waste.
For more detailed steps and tips, feel free to visit our Acclimation Guide in our Education tab to help make the transition as smooth as possible for your new fish.
Platies - Assorted
Platies - Assorted
Low stock: 15 left
Bulk pricing applies to individual fish variants only. Discounts apply automatically when added to cart.
Please note: Our livebearers are raised in mixed-sex tanks to promote natural breeding, so some females can arrive already pregnant, even if it isn’t showing at the time.
Need more details? Everything about shipping, care and guarantees is just below.
Shipping & Live Arrival Guarantee
Shipping & Live Arrival Guarantee
✅ Healthy Fish Guarantee - All orders are covered by our Live Arrival Guarantee with DOA (Dead On Arrival) policies in place for peace of mind.
🚚 $30 flat-rate shipping - Arrives within 1-4 business days, Free shipping on fish for orders over $150.
📦 Ordering supplies too? - Dry goods ship separately and have their own $11.95 shipping fee. This ensures faster delivery, so your fish never wait for equipment to be in stock. When ordering both fish and dry goods, both shipping fees apply ($30 + $11.95 = $41.95 total).
🌿 Packed safely - Fast, reliable shipping with oxygen, insulation and careful handling, packaging Includes insulated boxes, insulation such as news paper to keep everything warm and snug, heat packs during colder seasons, and high quality fish bags.
📦🐟 Live Fish Ship Mondays & Tuesdays Only - To minimise transit time and ensure your fish arrive happy and healthy.
🚚💨Express shipping ONLY - These orders will be defaulted to Express shipping so your fish get to you as fast as possible.
💙 Thank you - for helping us put the health and safety of our fish first!
👉 For more detailed information, please visit our shipping page.
Tank Requirements - Quick Overview
Tank Requirements - Quick Overview
If your aquarium is new, it may not be fully cycled yet. Newly set up tanks benefit from being fully cycled before adding fish, this process helps your new fish stay happy and healthy. Depending on your tank size, cycling can take up to 4–6 weeks or even longer, but there are ways to speed up this process to just a few days! If your tank has already been running for a while, you’re already good to go! Not sure what cycling means? Check out our guide on The Nitrogen Cycle for an easy explanation on what it is, and why it is important for your aquarium to thrive.
🐟 Want expert tips for your aquarium? Beginners can start with How to set up your aquarium, while everyone can check out Aquarium Maintenece & Care for ongoing tank tips!
How We Package & Ship Your Fish - Video
How We Package & Ship Your Fish - Video
Looking for tools, filters or Accessories like Nets, Breeding & Aquascape gear? You can find them here.
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Tank Mate Compatibility
✅ Compatible With
- Other Livebearers — Guppies, Swordtails, and Mollies share similar water parameters, care needs, and peaceful temperaments
- Small Peaceful Tetras — Neon, Cardinal, Emperor, and Ember Tetras are excellent companions
- Bottom Dwellers — Corydoras and Kuhli Loaches occupy lower levels with minimal interaction
- Algae Eaters — Bristlenose Plecos and Otocinclus Catfish are safe, practical additions
- Invertebrates — Mystery Snails are safe. Adult Amano Shrimp are generally too large and fast to be caught, however Platies will actively prey on juvenile shrimp, shrimp in moult, and smaller invertebrates. Use caution if keeping shrimp alongside Platies
- Other Community Fish — Harlequin Rasboras, Danios, and peaceful Gouramis (Honey, Dwarf, Pearl) all coexist well
❌ Avoid or Use Caution
- Large Aggressive Cichlids — Oscars, Jaguar Cichlids, and Green Terrors will bully or predate on Platies. Angelfish can eat juvenile and adult Platies despite their peaceful reputation
- Predatory Fish — Pictus Catfish, Reed Fish, and large Archerfish may view Platies as food
- Tiger Barbs — Known fin nippers that will harass Platies, particularly longer-finned varieties
- Strict Soft-Water Fish — Species requiring acidic, very soft water will not thrive alongside Platies which prefer harder, more alkaline conditions
- Betta Fish (Males) — Territorial male Bettas may attack or stress Platies. Some female Bettas may coexist with caution
Frequently Asked Questions
Do Platies need a heater?
Platies are one of the few tropical fish that can thrive without a heater in many Australian homes, as they tolerate a wide temperature range of 15–28°C. In cooler climates or during winter months, a heater may still be beneficial to maintain consistency and encourage breeding activity. A thermometer is always recommended to monitor water temperature regardless.
Do Platies help clean the tank?
Platies will help by grazing on algae and picking up uneaten food before it breaks down, which contributes to a cleaner tank environment. However, regular water changes and good filtration remain essential for maintaining water quality.
How often do Platies breed?
Platies are prolific breeders and females can give birth to anywhere from 20 to 80 fry every 4 to 6 weeks. They are livebearers, meaning they give birth to fully formed, free-swimming fry rather than laying eggs. Breeding is largely effortless and will occur naturally in a mixed sex aquarium with little to no intervention required.
Can a female Platy have babies without a male present?
Yes, and this surprises many new owners. Female Platies can store sperm internally for several months after a single mating, meaning they can continue to produce multiple batches of fry without a male being present in the tank. If you have purchased females only and they begin producing fry, this is the most likely explanation.
What do I do with all the fry?
Platy fry are free-swimming from birth and will be eaten by adult fish if not given shelter or separated. To improve survival rates, provide dense floating or fast-growing plants such as java moss, hornwort, or guppy grass for the fry to hide in. Alternatively, move the pregnant female to a separate breeding tank shortly before she gives birth, then return her once the fry are born. As the fry grow, they can be returned to the main tank once they are large enough to avoid being eaten, or rehomed to other fish keepers.
What do Platies eat?
Platies are omnivores and do best on a varied diet. High-quality flake foods such as Xtreme Community Crave Flakes make an excellent staple, while Xtreme Spirulina Flakes provide important plant-based nutrition. Supplementing with live or frozen foods such as baby brine shrimp and bloodworms will enhance their condition and colouration. Algae-based foods and vegetable matter should also be included regularly to support their overall health.
Can I keep Platies with other fish?
Yes, Platies are peaceful community fish and coexist well with a wide range of similarly sized and tempered species. They generally avoid aggression and do well alongside other livebearers, tetras, corydoras, and peaceful bottom dwellers. Avoid housing them with large or aggressive fish that may bully or prey on them.
What size tank do Platies need?
A minimum of 35 litres is recommended for a small group of Platies. However, given how readily they breed, a larger tank of 60 litres or more is advisable to comfortably accommodate population growth and provide adequate swimming space for all fish.
Are Platies suitable for beginners?
Yes, Platies are one of the best beginner fish available. They are hardy, adaptable to a wide range of water parameters, easy to feed, and fascinating to observe, particularly when breeding. Their tolerance for a wide temperature range also makes them forgiving in setups without a heater, making them an ideal starting point for new fish keepers.
Do Platies need a lid on my aquarium?
Yes, a secure lid is recommended. Platies are active swimmers and can jump, particularly if startled or if water quality drops. A well-fitted lid keeps them safe and also helps maintain a stable water temperature by reducing evaporation.
A Note on Our Fish:
Fish may vary slightly in colour, size, and pattern from those pictured or shown in images and videos. This is natural across all fish, whether bred in-house, locally sourced, or imported, as individual variation is part of what makes each fish unique!
Every fish is quality checked for health, behaviour, and appearance before leaving our fish room. Fish that are dispatched as juveniles will grow into their adult size and colouration over time with a good balanced diet and proper care.
