2. Their life span is relatively short, generally only two to three years.
They belong to small tropical fish, and their body length is relatively short, generally only three to four centimeters, and the longest can grow to about five centimeters.
Their bodies are only one centimeter wide at most.
5. They are omnivorous and carnivorous fish, which can be mainly based on fresh live bait, supplemented by high-quality artificial feed and fresh vegetables to ensure balanced nutrition.