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The Swordtail (Xiphophorus hellerii) is a popular, peaceful freshwater aquarium fish known for the male's distinctive "sword" on its tail fin, native to Mexico and Central America. A livebearer, it gives birth to live young and thrives in planted tanks with good water quality, often kept in groups with more females than males to reduce stress. Physical Characteristics Males: Have a long, sword-like extension on the lower part of their tail fin, which can be as long as their body. They often have green, red, and yellow stripes. Females: Lack the sword and have a more rounded, fan-shaped tail. Size: Can grow up...

The Neon Tetra (Paracheirodon innesi) is a popular, small, peaceful freshwater fish known for its vibrant blue and red stripe, making it ideal for community aquariums with other non-boisterous fish. They thrive in schools in well-planted tanks with soft, slightly acidic water (pH 6.0–7.5) and stable temperatures (75–82°F / 24–28°C). Appearance and Behavior Color: A bright, iridescent blue stripe runs horizontally across the body, with a red stripe below it, and an orange crescent above the eye. Size: They grow to about 1 inch (25 mm) long. Temperament: Peaceful and active schooling fish that feel secure in groups. Gender: Females are often plumper with...

Roseline Shark The Denison barb (Sahyadria denisonii) is a colorful freshwater fish from India's Western Ghats, known as the Red Torpedo Barb or Roseline Shark in the aquarium trade. It's a peaceful, active schooling fish that needs a large tank with fast-flowing, pristine water, and is popular in aquariums. Captive breeding has made it more available, and it's crucial to buy captive-bred specimens. Key Characteristics Appearance: Striking red, yellow, and black coloration, with a torpedo-shaped body. Size: Can grow up to 6 inches (15 cm). Temperament: Generally peaceful but very active; can nip at slow-moving tank mates like angelfish or bettas. Diet: Omnivore, eating...

Burmese Archer The Burmese Archerfish (Toxotes blythii) is a beautiful, freshwater species known for its unique hunting skill: spitting precise jets of water to knock insects off plants into the water to eat. Native to Myanmar's rivers, it's a top-dwelling fish that thrives in planted tanks with overhanging cover, requiring clean water, live food, and often a touch of aquarium salt. Key Characteristics Scientific Name: Toxotes blythii Appearance: Striking, with cloud-like spots and often a golden hue; considered the most beautiful archerfish. Size: Can reach over 6 inches (15cm). Habitat: Found in clear, freshwater rivers and estuaries in Southern Myanmar (Burma). Aquarium Care Tank...

The longnose gar is an ancient, primitive fish with an elongated body, long snout, and sharp teeth. It is found in rivers, lakes, and estuaries throughout the eastern United States and can survive in low-oxygen water by gulping air. While it is an effective predator, it primarily eats small fish and insects and is a popular target for bowfishing. Characteristics Appearance: Long, slender body with a long, narrow snout and sharp teeth. Its scales are hard and diamond-shaped. Color: Olive green or dark brown on the back, with a white or cream-colored belly. Size: Can grow over 5 feet long and weigh up...