FREE SHIPPING ON ACCESSORIES & PLANTS AFTER $69.99 & LIVE FISH AFTER $199.99

FREE SHIPPING ON ACCESSORIES & PLANTS AFTER $69.99 & LIVE FISH AFTER $199.99

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Harlequin Rasbora

Imported

Harlequin Rasbora

Trigonostigma heteromorpha


Native Location: Malaysia

Climate: Tropical

Maximum Size: 4.5cm

Temperament: Peaceful

Diet: Omnivore

Breeding: Moderate

Temperature Range: 21-28℃ (70-82℉)

Preferred pH Range: 5.0 - 7.5

Minimum Aquarium Size: 60cm x 30cm for a group of 6-8 fish.

Potential Tankmates: Tetras, Guppies, Apistogramma, Kuhli loaches

Care Level: Easy

The Harlequin Rasbora is one of those fish that, although they are found in peat swamps in their natural habitat, look just as fantastic when added to a lovely planted tank or aquascape display. This is down to their golden, almost bronze appearance, reddish tail and their trademark black marking. Regarded as one of the classic aquarium fish, we have been keeping shoals of these delightful fish in our aquariums since 1904.

Providing a home for these little fish is not complicated. In fact, they are happy living within a wide range of water parameters. The key to success is to provide stability. You will find they do well in most community tanks alongside fish of a similar size.

We have seen Harlequin Rasboras in fully planted setups, hardscape only layouts and even blackwater aquariums. They are all equally as nice but if you are looking at a more natural biotope style aquarium, it should consist of a substrate with leaf litter, twigs and other botanicals. This will produce the natural tinted water that can be found in their natural habitat. The tannins released from these items will help to create the acidic water, almost neutral water chemistry they like. The addition of aquatic plants such as Cryptocoryne species will provide these little fish with ample hiding spaces and create a very natural display.

Not known for being fussy eaters, the Harlequin Rasbora can be fed pretty much anything and they will be happy. Although, they are micro predators in the wild which indicates they do prefer a high protein diet. We can provide this by offering a balanced variety of live, frozen and dry foods. Daphnia and brine shrimp are some of the best live foods to offer them due to their size.

Breeding Harlequin Rasboras is not too difficult if a few specific things are provided. First of all, unlike most other fish in this genre, the Harlequin Rasbora are not egg scatterers. Instead, they will attach their fertilized eggs to the underside of wide plant leaves. This is another reason why Cryptocoryne species are helpful. In an aquarium with a lot of plants, you may discover random fry appearing but for a higher level of success, set up a dedicated tank. Add a small group of fish, taking note that females tend to be larger and rounder than males. Once eggs have been attached, remove the adults otherwise they will eat the eggs. 

All our fish are quarantined on arrival for two weeks. During this time, we treat for any health issues that may occur during transport and insure each fish is eating well and looking healthy. All fish are treated with Flubendazole before finally going on sale.

Dead on Arrival (DOA) Policy: In the unfortunate event that your fish arrives dead, please follow these steps: Within 12 hours of the delivery, take clear, unopened bag pictures showing the deceased fish. Send these photographs and your order number to our customer service email atgetfish@thefishroom.co.nz or to our Facebook page and we will then offer a refund or store credit for the cost of the fish. 

Two-Week Guarantee Policy: We stand behind the health and quality of our fish, which is why we offer a two-week guarantee starting from the day of delivery. If your fish dies within this time frame, adhere to the following procedure: Take clear photos of the deceased fish. Using a reliable test kit, document via a dated photo, water parameters (pH, ammonia, nitrate, nitrite levels). Please email us the photographs, water parameters, and order number togetfish@thefishroom.co.nz or our Facebook page. After reviewing your claim, if approved, we will issue a store credit for the cost of the fish. Our two-week guaranteedoes not cover fish deaths due to unsuitable water conditions, incompatible tank mates or “disasters” i.e. a heater overheating. We recommend thoroughly researching each fish species' needs before introducing them to your aquarium to prevent such situations. 

 Freight Charges: Please note that shipping or freight charges are non-refundable under all circumstances. We hope this guide makes our refund and guarantee process more understandable. If you have any questions or need further clarification, please get in touch with us at getfish@thefishroom.co.nz. We are always happy to assist. Thank you for choosing The Fish Room. Happy fish keeping! 

Customer Reviews

Based on 3 reviews
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M
Matthew Glentworth
Amazing Fish

Lovely fish, arrived safely and carefully packed, adjusted to tank and coloured up very fast.
Thanks TFR

R
Raj
Harlequin Rasboras

Placed and order for 10 fish in the week before Christmas and received the fish promptly. 1 looked a little crook initially but came right. Very pleased with the school and all are doing very well.

i
ian macintosh
Fish Purchase

Everything went well, fish arrived safely and adapted to the aquarium, only issue has been it seems the cichlid is rather parcel to both species, down to 3 harlequins and one respora.

We think we will add only either one new cichlid making total 2, and 1 gurami making 4. we have 3 bottom dwellers. Still they were pretty while they lasted !!

Will be in touch when we have decided which to purchase. Service was very good.

thanks Ian

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