Origins and Classification
- Scientific Name: Ariopsis seemanni (also listed as Hexanematichthys seemanni)
- Family: Ariidae (Sea Catfish)
- Origin: Found in Central and South America, primarily in the rivers, estuaries, and coastal waters of Colombia, Guatemala, and Peru.
- Popularity: Known for its sleek shark-like appearance and graceful swimming, often kept by hobbyists seeking a unique, active centerpiece fish.
🎨 Appearance
- Body Color: Silvery-gray body with a white belly.
- Distinctive Features:
- Signature black-tipped dorsal and caudal fins, giving it a “mini shark” look.
- Streamlined, torpedo-shaped body.
- Long whisker-like barbels typical of catfish.
- Size: Can grow up to 10–14 inches (25–35 cm) in aquariums, and even larger in the wild.
- Lifespan: 8–10 years with proper care and tank conditions.
🏡 Tank Requirements
- Tank Size: Minimum 100 gallons (large, open space required for swimming).
- Water Parameters:
- Temperature: 75–82°F (24–28°C)
- pH: 7.2–8.5
- Hardness: 8–20 dGH
- Salinity:
- Juveniles tolerate freshwater, but adults require brackish to light saltwater as they mature.
- Habitat Setup:
- Use smooth substrates (sand or fine gravel).
- Provide open swimming areas and minimal decorations.
- Strong filtration and oxygenation are essential — these fish are active swimmers and produce a lot of waste.
