Shark-Rainbow (60-80mm)

• Common Names: Rainbow Shark, Albino Rainbow Shark

• Scientific Name: Epalzeorhynchos frenatum

• Family: Cyprinidae

• Origin: Southeast Asia (Thailand, Laos, Cambodia)

• Lifespan: 5–8 years

• Adult Size: 6 inches (15 cm)

Tank Requirements:

• Tank Size: Minimum 55 gallons (larger preferred for adults)

• Water Temperature: 72–82°F (22–28°C)

• pH Level: 6.5–7.5

• Water Hardness: 5–11 dGH

• Substrate: Sand or fine gravel

• Filtration: Strong filtration and moderate water flow

• Tank Setup: Provide caves, rocks, and driftwood for hiding, along with open swimming space

Diet:

• Type: Omnivorous

• Food:

  • Algae wafers, spirulina-based foods

  • Blanched vegetables (zucchini, cucumber, spinach)

  • High-quality pellets and flakes

  • Occasional protein treats like bloodworms and brine shrimp

Temperament & Tankmates:

• Behavior: Territorial, semi-aggressive

• Best Tankmates: Fast-moving, similar-sized fish like barbs, danios, gouramis, and rainbowfish

• Avoid: Other bottom-dwellers like plecos and loaches (may be harassed), slow or timid fish

Care Notes:

• Aggression: Becomes more territorial with age; best kept as a single specimen

• Tank Mates: Avoid keeping multiple Rainbow Sharks unless in a very large tank (100+ gallons)

• Water Maintenance: Regular water changes (25–50% weekly) to maintain quality

• Activity Level: Active swimmer, prefers a well-structured tank with hiding places