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Live fish will be delivered only to selected pincodes in Kolkata and nearby areas.

Here's a complete guide to the Rainbow Shark — a vibrant, torpedo-shaped freshwater fish known for its bold colors and semi-aggressive personality.


🐟 Rainbow Shark Overview

  • Common Name: Rainbow Shark, Albino Rainbow Shark (color morph)

  • Scientific Name: Epalzeorhynchos frenatum

  • Family: Cyprinidae (carps and minnows)

  • Origin: Mekong River Basin, Southeast Asia (Thailand, Laos, Cambodia)

  • Type: Freshwater tropical fish


📏 Size & Lifespan

Trait Details
Adult Size 5–6 inches (12–15 cm)
Lifespan 5–8 years (can reach 10 with excellent care)

🎨 Appearance

  • Body: Sleek, torpedo-shaped with a dark gray to black body

  • Fins: All fins are bright red or orange, creating a dramatic contrast

  • Color Variants:

    • Albino Rainbow Shark – white body with red fins and red eyes

  • Tail: Forked, often with a vivid red fringe

  • Mouth: Underslung, bottom-feeding sucker mouth (not a true shark)

🧬 Despite the name, it is not a true shark — just named for its body shape.


🔥 Temperament & Behavior

  • Temperament: Semi-aggressive

  • Behavior:

    • Territorial, especially as they mature

    • Will chase similar-looking or bottom-dwelling fish

    • Can coexist peacefully if given enough space and hiding spots

    • Generally active and curious swimmers

🚫 Avoid keeping more than one in the same tank unless the tank is very large (75+ gallons).


🐠 Tank Requirements

Requirement Ideal Setup
Tank Size Minimum 55 gallons
Temperature 72–82°F (22–28°C)
pH Level 6.5–7.5
Water Hardness 5–15 dGH
Substrate Sand or fine gravel
Décor Driftwood, rocks, caves, dense plants
Filtration Moderate to strong flow
Lighting Moderate (not too bright)

🌿 Use hiding spots and territorial barriers to reduce aggression.


🍽️ Diet

  • Feeding Type: Omnivore (with herbivore tendencies)

  • Preferred Foods:

    • Algae wafers

    • Sinking pellets

    • Blanched vegetables: spinach, zucchini, cucumber

    • Occasional: bloodworms, brine shrimp, daphnia

✅ Feed once or twice daily in small amounts. They’re active grazers and will also eat algae.


✅ Care Tips

  • Keep water clean and well-oxygenated

  • Perform regular 25–30% weekly water changes

  • Avoid overcrowding

  • Use rocks or decorations to break line of sight

  • Choose tankmates carefully


🐣 Breeding

  • Breeding in Home Aquariums: Very rare and difficult

  • Requires specific conditions and large spaces

  • Most Rainbow Sharks in stores are commercially farm-bred using hormones

  • No reliable reports of home hobbyist breeding without professional setups


🤝 Tankmate Compatibility

Compatible Tankmates (with caution):

  • Barbs (e.g., tiger, rosy)

  • Rainbowfish

  • Danios

  • Gouramis

  • Loaches (carefully — bottom dwellers may be chased)

  • Larger tetras

  • Bristlenose plecos

Avoid:

  • Other Rainbow Sharks

  • Red Tail Sharks

  • Bala Sharks

  • Corydoras (too peaceful and bottom-dwelling)

  • Slow or delicate fish (bettas, angelfish)

  • Small fish that may be bullied

💡 One Rainbow Shark per tank is the safest strategy.


⚠️ Common Health Issues

  • Fin Damage – from fights or poor water conditions

  • Stress – due to poor water quality or cramped conditions

  • Ich (White Spot Disease) – common under stress

  • Color fading – can be due to diet or stress


🧠 Fun Facts

  • Despite their bold looks, Rainbow Sharks often hide during the day and become more active at dusk.

  • They're great algae grazers and will clean some surfaces in the tank.

  • Not suitable for community tanks under 40 gallons due to aggression.


🏁 Summary

The Rainbow Shark is a stunning, bold addition to the right aquarium. With its vibrant fins, shark-like profile, and territorial nature, it thrives in well-planned, medium-to-large tanks with compatible, semi-aggressive tankmates.


*Pictures are for reference purpose size & color might vary slightly.

Delivery of live Fish is only available in Kolkata & Howrah.

We process orders on all weekdays (Monday to Saturday), excluding public holidays.

To avail free shipping, purchase amount should be Rs350/-(for Aquarium Accessories and Aquatic Plants) or more, less than the above amount shipping charges applicable Rs70/- only. For live fish delivery charges applicable at the time of checkout.

Orders are normally Shipped within 1-2 days and usually take 2-5 working days to be delivered based on your location. However, you will receive an approximate timeline when you place your order.

To ensure that your order reaches you quickly and in good condition, we only ship through reputed courier agencies.

Let us know abour your query!