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.


Chilli rasbora
Chilli rasbora
Chilli rasbora
Chilli rasbora
Chili Rasbora
Chili Rasbora
Quick Facts
Scientific NameBoraras Brigittae
Other NamesMosquito Rasbora
Aquarium LevelMiddle - Top
DifficultyBeginner - Intermediate
Best kept asGroups 10+
Lifespan4 - 8 years
Water Parameters
Water TypeFreshwater
PH4.5 - 7.5
GH3 - 8
TDS18 - 179
74 - 82℉
23.3 - 27.8℃


In the home aquarium, the Chilli Rasbora will readily accept most good quality dried foods such as granules, flakes and sinking pellets. These modern food products have been developed to provide all adequate nutrition to maintain your fish's health and dietary requirements.

Providing additional foodstuffs such as live, frozen, and freeze-dried meals such as bloodworm, daphnia, and tubifex once or twice a week will provide additional benefits to your fish's health and well-being but is not a must for this fish.

It should be noted that bloodworms should only be given as an occasional treat and should not be used as the staple diet as they are difficult for fish to digest and can potentially cause blockages.

This fish is an omnivore in the wild, meaning it will consume some vegetable matter. Although most modern fish foods take this into account and include them in their products, you can still supplement your fish's diet with blanched vegetables such as spinach, broccoli, and zucchini. Ensure you do not overfeed your fish and remove any leftovers the following day.

Tank Mates

2 interesting tank mate ideas for the Chilli Rasbora could include:

Indian Hifin Barb(Oreichthys cosuatis)
Ivantsoffs Blue Eye Rainbowfish(Pseudomugil ivantsoffi)

Sexual Dimorphism

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.

Other Rasboras of interest

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