Platies are small, colorful freshwater fish belonging to the family Poeciliidae. They are popular in home aquariums due to their vibrant colors and peaceful nature. Platies typically grow to about 2 to 3 inches in length and are known for their hardiness, making them suitable for beginners. They thrive in a variety of water conditions and can live for up to three years with proper care. These fish are livebearers, meaning they give birth to free-swimming young rather than laying eggs. Platies come in various color patterns, including orange, yellow, and blue. They are social creatures and do best in groups, often being kept alongside other species like guppies and neon tetras.