Rainbow Shark (Epalzeorhynchos frenatum)

Quarantined semi-territorial community fish for carefully planned freshwater aquariums in Canada.

The Rainbow Shark is a bold semi-territorial aquarium fish known for its dark body and bright red-orange fins. It is best for medium to larger community aquariums with enough territory and carefully selected tankmates.

Why This Fish Stands Out

• High-contrast dark body and red-orange fins
• Active bottom-to-midwater behaviour
• Classic feature fish for larger community aquariums

Aquarium Setup & Behaviour

Provide a mature aquarium with caves, wood, plants, swimming space, and territory breaks.

Can become territorial, especially toward similar-shaped bottom fish. Avoid crowded small tanks.

Feeding

Feed quality sinking foods, algae wafers, vegetable-based foods, and varied prepared foods.

Natural Colour & Livestock Integrity

Colour is natural to healthy fish and supported by good care. No hormones are used.

Topick Aquarium Livestock Standard

All fish at Topick Aquarium are carefully quarantined and conditioned to our stable local tap water before sale. Some oddball and specialty species still have very specific long-term needs, so we recommend matching each fish to the right aquarium size, diet, tankmates, and maintenance routine before purchase.

Care Summary

• Scientific Name: Epalzeorhynchos frenatum
• Adult Size: Approximately 12–15 cm
• Care Level: Beginner to Intermediate
• Recommended Tank: Mature aquarium planned around this species' adult size, behaviour, diet, and tankmate compatibility

Frequently Asked Questions

Is Rainbow Shark a real shark?
No. It is a freshwater cyprinid, not a true shark.

Can Rainbow Sharks be territorial?
Yes. They can claim territory, especially as they mature.

What tank size is best?
A medium to larger aquarium with hiding spaces and swimming room is recommended.

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