Harlequin Rasbora Tropical Fish Information

Trigonostigma heteromorpha
Harlequin Rasbora
Behaviour Peaceful, shoaling
Typical size 3cm
Max size 5cm
Tank Area Middle, all
Min Tank Size 60cm
Min Number 6
Temp Min: 22℃ Max: 26℃
Feeding Flake, frozen, live foods
pH Range 5-8
Hardness vs,s,m,h
Harlequin Rasbora Trigonostigma heteromorpha
  • Harlequin Rasbora Trigonostigma heteromorpha - thumbnail
  • Harlequin Rasbora Trigonostigma heteromorpha - thumbnail

Harlequin Rasbora (Trigonostigma heteromorpha)

Harlequin Rasbora Tropical Fish Learn all about the Harlequin Rasbora's feeding habits and food types, its behaviour, its origins, its natural habitats, is it male or female, breeding advice and information, suitable tank mates, its sizing and growth range, minimum tank size, water PH and more. Use our fish community creator tool to plan your tank set up and ensure that the Harlequin Rasbora is the right fish for your aquarium.

The Harlequin is a popular aquarium fish and ideal for a community of other small, peaceful fishes. Harlequins are shoaling fish and need to be kept in groups, ideally in aquariums with densely planted areas and plenty of hiding spots. Over time the body shape deepens and older fish often exhibit a high-backed shape. Good water quality is required for long-term health and the fish prefer slightly soft, acidic water. A good aquarium fish for planted tanks or peaceful communities. Harlequins also make good tank-mates for timid or nervous fish.

Harlequin Rasbora Facts

Family Cyprinidae (Minnows & Carps) | Synonyms Rasbora heteramorpha, R. heteromorpha | Other names Red rasbora | Origin Asia; Thailand, Sumatra | Breeding Open water egg scatterers | Natural Water Conditions pH 5-7, very soft to medium | Natural Habitat Forest streams | Sexing Males are thinner. The black marking on the body extends at the bottom on males; on females the edge is flat



Harlequin Rasbora Help and Advice

If you have a question about keeping Harlequin Rasbora's then please use our Harlequin Rasbora help forum. Join 100's of other fish enthusiasts with 1000's of years experience between them caring for and keeping fish like these.


question mark     


Check Tankmates for the Harlequin Rasbora fish species

Create a test community that includes the Harlequin Rasbora fish species and other types you'd like to introduce - Assess tank size suitability based on filter type and volume, possible negative interactions and warnings.

Please check your water type for compatibility with your fish, which can be found on the Harlequin Rasbora information box.
Tank Details
question mark  Rename your tank:
question mark  Length: (cm)
question mark  Volume: (Litres)
question mark  Filter type:

* Recent changes to stocking & filter advice October 2018
* This fishtank will only last for this session - to save your tank please Join/Log in


Stocking
question mark  Max Stocking level: 0cm
0-1 months 20%: 0cm
1-3 months 40%: 0cm
3-6 months 60%: 0cm
question mark  Current stock level: 0cm
Stock percentage: 0%
question mark  Suggested maximum
fish size for your tank:
0cm
My Fishtank Quantity Stock cm
There are no fish in your fishtank. To add fish, view a fish profile and click the 'Add to My Fishtank' button

If you'd like to talk about the "Harlequin Rasbora" with our users, then we have a buzzing community of fish enthusiasts where you can talk about tank issues, Harlequin Rasbora fish behaviour, Harlequin Rasbora tank stocking and any other issues related to the Harlequin Rasbora fish or other types you may have.

To save your details in the Fish Community Creator you must be logged in CLICK HERE to log-in or join


Help us keep great tools like this online by becoming a think fish supporter . You will help with our hosting and development costs. From as little as £1.16 per month - Become a Supporter today



Click to read the Latest Tropical Fish discussions from Thinkfish users.

Think Fish Tropical Fish Forum
Tropical Fish Market Place
Fish of the month


Helping Fishkeepers With Their Fishkeeping Needs Since 2006