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Max Size: 2cm

Chilli Rasbora (Boraras Brigittae)

The Chili Rasbora is one of the most petite tropical fish in the aquarium hobby. The fish are not true Rasboras and were placed in the Boraras genus in 1993.

This fish does not make an ideal community fish due to its small size and rather timid nature. However, with their kind, they are a beautiful, peaceful, easy species to keep and will certainly liven up an aquarium.

The Chili Rasbora has a reddish colour body with a dark stripe along its side. An intense red bar sits above the dark line, creating a beautiful contrast.

They also have a small dark spot at the base of the anal fin and tail fin. Male Chili Rasboras also display red highlights on their dorsal and anal fins.

Tank Mates for the Chilli Rasbora

2 ideal tank mate ideas for the Chilli Rasbora include:

Indian Hifin Barb(Oreichthys cosuatis)
Ivantsoffs Blue Eye Rainbowfish(Pseudomugil ivantsoffi)
Quick Facts
Scientific NameBoraras Brigittae
Other NamesMosquito Rasbora
ClassificationActinopterygii
OrderCypriniformes
FamilyCyprinidae
GenusBoraras
OriginsIndonesia
TemperamentPeaceful
Aquarium LevelMiddle - Top
DifficultyBeginner - Intermediate
ShoalingYes
Best kept asGroups 10+
DietOmnivore
ReproductionEgg-Scatterer
Lifespan4 - 8 years
Water Parameters
Water TypeFreshwater
PH4.5 - 7.5
GH3 - 8
TDS18 - 179
Temperature
74 - 82℉
23.3 - 27.8℃

Photos of the Chilli Rasbora

Chilli rasbora
Chilli rasbora
Chilli rasbora
Chilli rasbora
Chili Rasbora
Chili Rasbora

Natural Habitat

Chili Rasboras are native to Southwestern Borneo, Indonesian province of Kalimantan Tengah and Kalimantan Selatan in South East Asia.

They inhabit blackwater streams, swamps, pools and rivers.

The conditions of these sort of swamps and streams are very distinct. The water is dark in these habitats because of the degrading organic materials that fall into the water like twigs, leaves and branches.

What to feed the Chilli Rasbora

Chili Rasboras are not demanding when it comes to nutrition and diet. It is not a fussy eater and will eat most types of foods they are given.

Their diet needs to be balanced and varied so feed them high-quality micropellets and crushed flakes as well as small frozen foods such as mini-bloodworm, cyclops and baby brine shrimp. Just keep in mind that they have tiny mouths.

How to sex the Chilli Rasbora

It is moderately easy to identify male from female Chili Rasboras.

Males tend to have darker black and red highlights on their dorsal and tail fins, and when they are ready to breed, they acquire a brighter red colouration, whereas females are slightly larger, duller and plumper than the males.

How to breed the Chilli Rasbora

The Chili Rasboras are continuous spawners, but to increase the number of fry, you will need to take a controlled approach.

A separate breeding tank will be required, and this needs to be dimly lit with a slightly higher temperature than the usual and have plenty of plants. The bottom of the tank can either have a mesh covering, big enough to allow the eggs to pass through, but small enough that the fish cannot get to them. Plastic grass is also good to use and works well.

You will need to condition the Rasboras for a couple of weeks before introducing them to the breeding tank, once conditioned place two or three pairs into the tank, then spawning should take place the following morning.

Chili Rasboras do not seem to seek the eggs actively, but if given the opportunity, they will eat them so after a couple of days you will need to remove the parents.

The eggs will hatch 2-3 days later well they will live off their yolk sacs for a further 24 hours, and after that, you will need to feed them powdered or microscopic food.

Other Rasboras of interest

Black Line Rasbora(Rasbora borapetensis)
Clown Rasbora(Rasbora kalochroma)
Dwarf Rasbora(Boraras maculatus)
Emerald Eye Rasbora(Brevibora dorsiocellata)
Exclamation Point Rasbora(Boraras urophthalmoides)
Fire Rasbora(Rasboroides Vaterifloris)
View all Rasboras
Date Added: 08/09/2020 - Updated: 19/01/2022 14:12:23