Rainbow Shark Minnow - 9cm

Species Profile

• Scientific Name: Epalzeorhynchos frenatus
• Common Name: Rainbow Shark Minnow
• Adult Size: 6 inches (15 cm)
• Life Expectancy: 5–8 years (can live longer with optimal care)
• Habitat: Native to freshwater rivers and streams in Southeast Asia (Thailand, Laos, Cambodia). Typically found in fast-flowing, well-oxygenated water with sandy or rocky bottoms.

Tank Requirements

• Minimum Tank Size: 55 gallons (208 liters) for one adult
• Ideal Temperature: 72–82°F (22–28°C)
• pH Range: 6.5–7.5
• Water Hardness: 5–15 dGH
• Temperament: Semi-aggressive and territorial, especially toward similar-shaped or bottom-dwelling fish. Best kept singly or in larger tanks with carefully selected tank mates.

Diet & Nutrition

• Omnivorous: Yes
• Diet: Will eat a mix of algae wafers, flakes, sinking pellets, bloodworms, brine shrimp, and blanched vegetables (like zucchini and spinach). A varied diet supports vibrant coloration and health.

Appearance

• Body Shape: Streamlined, torpedo-like body

• Color: Typically dark gray to black with bright red or orange fins. Some morphs (e.g., albino rainbow shark) have pale or white bodies with red/orange fins.

Distinctive Features

• Brightly colored fins that contrast with a darker body
• A sharp snout and downward-facing mouth adapted for bottom-feeding
• Territorial behavior often involving chasing or "posturing" rather than physical combat
• Not a true shark, but named for its shark-like body shape and fin structure