Harlequin Rasbora
Pickup currently unavailable at Napier
Shipping & Returns
All live fish are shipped using NZPost overnight services with authority to leave (no signature).
We cannot guarantee the overnight services, this is a service that we/you pay for; but is not guaranteed.
We DO NOT offer returns on any alive animal.
Above are key points of our policy, Click Here to read our full shipping policy.
Dead On Arrival (DOA) Cover*
- DOA must be reported within 2 hours of delivery.
- Bags must remain sealed (do not remove rubber band or tape)
- Photos & Videos must be supplied this can be emailed or sent through live chat; including your order No. (minimum 3 clear images, showing dead fish & sealed bag)
- DOA does not apply once the bags are opened & fish have been released.
- DOA does not apply to any Rural (RD) address.
Introducing New Fish
Follow these steps to minimize stress and ensure a smooth transition for your new fish!
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Float the Bag: Place the sealed bag containing the new fish in the tank. This equalizes the temperature between bag and tank water.
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Open and Add Tank Water Gradually: After about 5 minutes, open the bag and add a small amount of aquarium water into it every 5 minutes for 15–30 minutes. This helps the fish acclimate to the tank’s water chemistry.
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Wait 15–30 Minutes: Let the fish adjust to the water temperature and chemistry gradually in the bag.
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Release Fish: Gently release the fish into the tank without pouring the original bag water in.
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The Harlequin Rasbora Hengelii, commonly known as the Copper Harlequin, is a small, peaceful schooling fish prized for its warm copper-orange body and distinctive black wedge marking accented with an iridescent orange glow.
Native to slow-moving blackwater streams in Southeast Asia, Copper Harlequins are hardy, calm, and ideal for planted community aquariums. Their subtle colouring intensifies in soft, slightly acidic water and when kept in proper schools.
Physical Characteristics:
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Adult Size: 3–4 cm
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Body Shape: Slim and laterally compressed
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Colouration: Copper-orange body with black wedge marking and orange iridescence
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Sexual Dimorphism: Females slightly rounder when mature
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Lifespan: 3–5 years
Physical Characteristics:
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Adult Size: 3–4 cm
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Body Shape: Slim and laterally compressed
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Colouration: Copper-orange body with black wedge marking and orange iridescence
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Sexual Dimorphism: Females slightly rounder when mature
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Lifespan: 3–5 years
Aquarium Requirements:
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Minimum Tank Size: 40 litres
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Water Temperature: 22–28°C
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pH Range: 5.5–7.0
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Water Hardness: 2–10 dGH
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Water Flow: Gentle
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Substrate: Sand or fine gravel
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Aquascape: Live plants, driftwood, shaded areas
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Lighting: Low to moderate
Feeding:
Harlequin Rasbora Hengelii are omnivorous and easy to feed:
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High-quality micro pellets
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Fine flakes
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Frozen foods (daphnia, brine shrimp, cyclops)
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Occasional live foods
Feed small amounts once or twice daily.
Compatibility:
Suitable Tank Mates:
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Other rasboras
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Small tetras
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Corydoras catfish
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Otocinclus
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Dwarf gouramis
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Peaceful shrimp
Avoid Housing With:
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Large or aggressive fish
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Fin-nippers
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Fast, boisterous species
Breeding:
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Spawning Type: Egg scatterer
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Breeding Difficulty: Moderate
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Breeding Notes:
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Spawns under broad-leaf plants
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Eggs fall onto substrate
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Adults may eat eggs; breeding tank recommended
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Special Considerations:
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Colours intensify in soft, slightly acidic water
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Best visual impact when kept in groups
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Sensitive to sudden water parameter changes
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Excellent choice for planted and blackwater aquarium
*Product Photo is for reference only. Exact fish may vary in size and colour
