Harlequin Rasbora Care Guide & Species Profile

The buffoon rasbora is a freshwater fish of the Cyprinidae household belonging to Singapore, Malaysia, Sumatra, as well as southerly Thailand. The orange- or pink-colored buffoon rasbora is really comparable to the lambchop rasbora as well as glowlight rasbora.

The buffoon rasbora is preferred with aquarists as a result of its education habits as well as dynamic shades. Buffoon rasboras are a terrific option for a smaller sized neighborhood container as well as appropriate for newbie aquarists.

Table of Contents

Buffoon Rasbora Information & & Review

Harlequin rasbora swimming in a planted tank
Credit History: Wiki Commons, Writer: Mariusz Dabrowski
Taxonomic name: Trigonostigma heteromorpha
Usual names Red rasbora, buffoon fish, buffoon rasbora, buffoon
Circulation: Singapore, Malaysia, Sumatra, as well as southerly Thailand
Dimension: 1.75– 2 inches
Life span: 5– 8 years
Shade: Orange-pink body with a black wedge-shaped noting
Diet Regimen: Omnivore
Personality: Serene
Minimum container dimension: 10 gallons
Temperature Level: 72– 81 °F( 22– 27 ° C)
pH: 6.0– 7.8
Firmness: 2– 15 dGH
Treatment degree:(* )Easy Reproduction:
Egg-layer Beginning

The buffoon rasbora (

Trigonostigma heteromorpha )is an exotic freshwater fish located in Southeast Asia, throughout western Malaysia, southerly Thailand, as well as Singapore. In nature, buffoon rasboras live in woodland streams as well as greatly decayed peat swamps with sluggish water circulation. These waters are identified by the reduced mineral web content as well as high focus of liquified humic acid. The visibility of natural particles provides the water a yellowish-brown tone.


The International Union for Preservation of Nature as well as Natural Resources (IUCN) provides the buffoon rasbora on the Least Problem listing, implying the types is still abundant in the wild.

Grownup Dimension & & Life Expectancy

Buffoon rasboras are tiny fish, expanding 1.75 to 2 inches long. These fish differ in dimension as well as look, relying on the area of beginning. Buffoon rasboras from Thailand are usually smaller sized as well as slimmer than those from Singapore. Women buffoon rasboras are somewhat bigger as well as thicker than men.

The typical life span of buffoon rasboras is in between 5 as well as 8 years.



Buffoon rasboras are amongst one of the most preferred education fish as well as are offered in many pet shops.

Presently, these on-line shops have supply of buffoon rasboras:

solitary buffoon rasbora sets you back $3.50–$ 4.50 generally, while an institution of 6 prices $19–$ 26.

A Look

The buffoon rasbora’s dynamic look as well as calm habits make this types very preferred amongst aquarists. These tiny fish are relatively sturdy as well as adjust to many fish tank problems.

Harlequin rasbora swimming near rocky substrate

Color Styles, Patterns, Fins, as well as Sex Distinctions

The buffoon rasbora is a little fish with an extended as well as side to side pressed body, a little incurable mouth, as well as a deeply forked back fin. These rasboras are really comparable to their relatives, the lambchop rasbora as well as glowlight rasbora, however are much stockier with a convex stubborn belly location.

Like all various other cyprinids, the buffoon rasbora’s pectoral fins lag the gill cover. The pelvic fins lie better back, along the forward part of the body.


The bodies of these fish can differ in shade from a light pink or brilliant red to copper orange. The buffoon rasbora’s body is embellished by a black triangular noting that covers the back fifty percent of the fish’s side, alongside the gills. The unique wedge-shaped noting stretches from the dorsal fin as well as concerns a factor near the base of the back fin.

Both man as well as women buffoon rasboras have a black wedge-shaped noting on the back fifty percent of their bodies. This spot is bigger in male fish as well as has a spherical expansion near the bottom side. On ladies, the black wedge is entirely straight.

There are a number of shade morphs of the buffoon rasbora. Fish with copper or golden-colored bodies are called gold buffoon rasboras. Black buffoon rasboras have primarily black bodies as well as a black triangular spot. Fish with a solid blue tone are described as blue buffoon rasboras.


Normal Habits

The energetic as well as fast-moving buffoon rasboras are calm neighborhood fish. These education fish do finest in teams of 10 or even more people. Buffoon rasboras quadrate many fish. Yet some much less energetic fish types might not endure the rasbora’s energetic way of living.

In the fish tank, these fish invest the majority of their time in mid-levels, seldom venturing to the base or the surface area. Buffoon rasboras will certainly conceal amongst plants or caverns when worried or attempting to avoid brilliant light or larger tankmates.


Treatment & & Container DemandsRasbora Credit History: Wiki Commons, Billyhill

School of harlequin rasboras swimming in planted tank
Buffoon rasboras are very easy to take care of. These sturdy education fish are a terrific option for newbie aquarists.

The all-natural environment of this types includes soft, somewhat acidic water as well as sluggish water activities. These fish choose atmospheres with thick plant life, an open location for swimming, dark substratum, as well as low-light problems.


Establish the buffoon rasbora’s container with the fish’s all-natural environment in mind.

roomy, greatly grown container with a great filter that will not produce solid water activities, as well as a dark substratum will certainly assist buffoon rasboras feel comfortable.A These fish are omnivores. In the wild, the types preys on worms, tiny pests, zooplankton, as well as shellfishes. Feed buffoon rasboras an equilibrium of premium flake or pellet food as well as deal live salt water shrimp or bloodworms as deals with.

Environment as well as Container Demands

Buffoon rasboras are sturdy education fish. Taking care of these fish is very easy, as long as you maintain their container as well as water tidy.

The natural surroundings of the fish is one-of-a-kind. The cozy blackwaters are really dark as well as have high focus of humic acid. In spite of the dark look, the water is tidy as well as has a somewhat acidic pH equilibrium.


These fish invest one of the most time in the open water of the center as well as top degrees of the container. The types requires area to swim about as well as does finest in lengthy fish tanks of 36 or even more inches.

To resemble the buffoon rasbora’s natural surroundings, make use of a great filter that will not produce solid water activities. These fish choose to stay in really slow-moving waters, so an effective filtering system isn’t essential.

Execute regular monthly water modifications of at the very least 25%– 50% to keep water top quality. In largely equipped fish tanks, change 20%– 25% of water regular or every various other week. Throughout the water modifications, vacuum the substratum to stop the build-up of waste.

Cover all-time low of the container with soft sand or crushed rock, or make use of a dark substratum to draw out the buffoon rasbora’s shades. Aquascape the container utilizing thick growings, bogwood, completely dry fallen leaves, rocks, as well as broad-leaved plants. Usage drifting plants to diffuse the light going into the container. The plants produce darkness that will certainly enhance the buffoon rasbora’s safety and security.


Container Problems

minimum container dimension for buffoon rasboras is 10 gallons, though a

A 20-gallon container is liked. These fish are education fish that should be maintained in a team of 8 to 10 people. Colleges of bigger numbers need bigger storage tanks as well as make a lovely display screen. Fill up the container with soft freshwater to resemble the buffoon rasbora’s all-natural environment. These exotic fish are utilized to residing in cozy water, so maintain the water’s temperature level in the 72– 81 °

array.F The types is located in somewhat acidic waters, so the pH degree inside the container ought to remain in the 6.0– 7.8 array– preferably 6.5. The fish tank must be loaded with fresh water at a 2– 15 dGH water firmness degree, as well as no briny water must exist. Buffoon rasboras adjust to many fish tank problems, however their shades reveal finest in soft, somewhat acidic water problems.

great filtering system is essential to maintain the container tidy as well as keep water top quality. Filtering must produce modest currents that will not interrupt the water location where buffoon rasboras swim.

A Water kind:

Soft, freshwater Storage tank dimension:
10-gallon minimum, 20 or 30-gallon favored Water temperature level:
72– 81 ° ( 22– 27 ° F) C Substratum:
Sand, rocks Storage tank arrangement:
Real-time plants, bogwood, any kind of sort of rock Level Of Acidity:
6.0– 7.8 pH Water firmness:
2– 15 dGH Filter:
Yes, a filtering system maintains the container tidy as well as keeps water top quality Plants:
Yes, an air pump produces surface area activities that include oxygen to the water as well as can assist maintain the water oxygenated throughout the summertime Buffoon rasboras require a large, greatly grown container with area to swim easily. Mount a good-quality filter as well as carry out normal water modifications to keep water top quality as well as maintain the container tidy.


Buffoon rasboras are resistant to condition. Yet like various other

freshwater fish, buffoon rasboras can be impacted by typical fish conditions Anxiety, absence of a nourishing diet plan, as well as bad water top quality enhance the danger of fish getting ill. Buffoon rasboras might obtain impacted by the list below conditions:


These calm fish quadrate any kind of fish, as long as it isn’t huge as well as predative. The fast-moving way of living of buffoon rasboras might be excessive for some less-active tankmates.

School of harlequin rasboras swimming in decorated tank


Terrific tankmates for buffoon rasboras consist of:

Non-fish fish tank types that can be housed with buffoon rasboras are snails as well as shrimp.

Diet Regimen as well as Feeding

In the wild, the omnivorous buffoon rasbora consumes tiny pests, worms, shellfishes, as well as zooplankton. In the fish tank, these fish require an equilibrium of premium pellet as well as flake food, supplemented with a periodic online salt water shrimp, Daphnia, or bloodworm. Buffoon rasboras flourish on a different diet plan that satisfies their dietary demands.

These fish do finest when used smaller sized quantities of food a number of times a day. Feed buffoon rasboras just what they can consume in 3 mins or much less at each feeding. When feeding once daily, offer as much food as buffoon rasboras can consume in 5 mins.

Harlequin rasbora appearance close up



Reproducing buffoon rasboras can be difficult. These fish need optimum problems to start generating, as well as also after that, the fish can generate for days prior to mating happens. Unlike various other cyprinids, buffoon rasboras are open water egg-layers as well as connect their eggs to the bottom of broad-leaved plants.

To efficiently reproduce buffoon rasboras, choose young people as well as problem them with tiny offerings of online food a number of times a day for concerning 4 weeks. Conditioning with food must motivate fully grown ladies to complete with eggs as well as will certainly assist draw out the man’s shade.

Just How to Prepare

Offer a dimly-lit reproduction container as well as maintain the water degree at around 6– 8 inches. Replicate the all-natural water chemistry specifications as very closely as feasible. The water must be soft, no greater than 1.5– 2.5 dGH, with a somewhat acidic pH of 5.3– 6.0 as well as a temperature level in between 77– 82.4 °

(* )Establish the reproduction container with online or synthetic broad-leaved plants like

CryptocoryneF or

Microsorum Include a generating wipe to the container so eggs that do not connect to the plant’s fallen leaves belong to drop. The Reproduction Refine After preparing the reproduction container, present the reproducing set later on in the day. Promotions

When reproducing teams of young buffoon rasboras in a solitary container, maintain 2 men for each lady.

Buffoon rasboras generate in the early morning. Generating is started by the man, that takes the lady under a broad-leaved plant. The male carries out a courtship dancing, pushing the lady’s sides as well as scrubing her stubborn belly with his back.

When the lady prepares to generate, both will certainly relocate under the plant leaves, where 6 to 12 eggs will certainly be transferred each time. The fed eggs will certainly comply with the bottom of the fallen leaves. The lady will commonly lay 80– 100 eggs in a couple of hrs.

Get rid of the moms and dads as quickly as the spawning mores than due to the fact that buffoon rasboras consume their eggs as well as fry. Buffoon rasbora eggs require about 18 hrs to hatch out at a temperature level of 80 °

as well as come to be free-swimming in 3 to 5 days.

Feed the free-swimming fry infusoria for the initial couple of days. The fry expands rapidly as well as can begin consuming child salt water shrimp once it is in between 7 as well as 2 week old.

PromotionsF Should You Obtain a Buffoon

for Your Fish tank?

The buffoon rasbora is amongst one of the most preferred education fish that will certainly include shade as well as vibrancy to any kind of neighborhood container. These sturdy as well as versatile fish quadrate many various other calm types of a comparable dimension.

Easy to take care of as well as pleasurable to check out, buffoon rasboras are a superb option for newbie aquarists. Maintain a team of at the very least 8 to 10 buffoon rasboras in a large as well as well-planted container.Rasbora Resource web link


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