Platies (Xiphophorus maculatus) are a type of freshwater fish that are popular among aquarists. They are known for their vibrant colors, peaceful nature, and ease of care. Platies are hardy fish that can adapt to a wide range of water conditions, which makes them a great choice for beginners.

Here are some basic care guidelines for keeping platies in an aquarium:

1. Tank size: Platies are small fish and do not require a large tank, a 10-gallon tank is suitable for a small group of platies.

2. Water temperature: Platies prefer water temperatures between 72-78 degrees Fahrenheit.

3. Water chemistry: Platies are tolerant of a wide range of water conditions, but they prefer slightly acidic to neutral water with a pH of 6.5-7.5

4. Diet: Platies are omnivorous and will eat a variety of foods including flakes, pellets, and live or frozen foods.

5. Tankmates: Platies are peaceful fish and can be kept with other peaceful fish such as swordtails, mollies, and guppies.

6. Breeding: Platies are livebearers, meaning they give birth to live young. They will breed readily in a well-maintained tank and the fry can be fed with baby brine shrimp or crushed flakes.

It's important to note that regular water changes and good filtration is necessary for keeping platies healthy and happy. Also, good nutrition and proper water conditions are important for breeding platies.