Pygmy Rasbora
Boraras maculatus
Also known as: Dwarf AKA Pygmy Rasbora, dwarf rasbora, Dwarf-spotted Rasbora, Spotted Rasbora
A pea-sized schooling fish that rewards patience with dazzling group displays.

About
The dwarf-spotted rasbora (Boraras maculatus) is one of the smallest cyprinids on the planet, barely reaching an inch even when fully grown, and it packs a lot of personality into that tiny frame. It comes from the slow, tea-dark forest streams and peat swamps of the Malay Peninsula and Sumatra, where the water is soft, acidic, and filtered through layers of leaf litter and decaying vegetation. In the aquarium, you'll see a slim, reddish-orange fish marked with a series of dark lateral spots, giving it a quietly ornate look that reveals itself best when you have a proper group together. And that's the key point with this species: eight to ten fish at minimum, ideally more. In decent numbers, the males display their richest color and engage in lively rivalry for female attention, turning a quiet planted tank into something genuinely interesting to watch. Despite being peaceful, the dwarf-spotted rasbora is not really cut out for a typical community setup. Its small size and somewhat timid nature mean it gets easily overwhelmed by larger or boisterous tankmates. It does best alongside other miniature species, think pygmy corydoras, small loaches, Otocinclus, or similarly gentle anabantoids, and can be kept safely with Caridina or Neocaridina shrimp. Breeding is possible in a well-planted tank but tends to go more smoothly with some effort from the keeper.
Similar species
Other fish you might consider
Good tank mates
Species that tend to coexist peacefully with Pygmy Rasbora
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Pygmy Rasbora get?
- The Pygmy Rasbora reaches about 0.5–1" as an adult.
- What size tank does the Pygmy Rasbora need?
- A minimum of 11 gallons is recommended for the Pygmy Rasbora, with more room needed for a proper group.
- What water parameters does the Pygmy Rasbora need?
- The Pygmy Rasbora does best with a temperature of 68–82°F, a pH of 4–7, hardness around 1–12 dGH.
- Is the Pygmy Rasbora aggressive?
- The Pygmy Rasbora is generally peaceful and suits a community tank with similarly calm tankmates.
- What does the Pygmy Rasbora eat?
- The Pygmy Rasbora is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
- How long does the Pygmy Rasbora live?
- With good care, the Pygmy Rasbora typically lives 2-5 years.