1 kinds · tap one for a closer look
Tiny and shy; keep only with nano fish and shrimp.
232 species in our list are a good match.
Tiny and shy; keep only with nano fish and shrimp.
Very small foods.
Tap a food to see what it is.
Mature females are noticeably rounder-bellied and often a little larger than males; males are the more intensely red.
Common problems. Tap one to see the signs. This is a guide, not a diagnosis.
Egg-depositor (plants) · Hard
Egg-scattering continuous spawner with no parental care that lays small numbers of eggs daily among fine plants or moss, often on the underside of leaves.
Buy a group of 10 or more and let them pair up. Males are brighter red.
10-20 L tank with fine moss, soft acidic water and gentle flow.
Soft acid water and stable conditions with tiny foods.
Small numbers of eggs each day (up to about 50 per spawning); larvae hatch after about 48 hours and live on the yolk sac for about a day.
Fry are tiny. Feed infusoria or rotifers first, then baby brine shrimp. Keep plenty of moss.
A tiny rasbora (about 2 cm) from the blackwater peat swamps of south-western Borneo, described by Dieter Vogt in 1978 and named after his wife, Brigitte. IUCN lists it as Data Deficient.
Dieter Vogt described this tiny fish in 1978, first as a subspecies of a similar rasbora. At about 2 cm, it became a favourite of the nano-tank boom. Its red colour deepens in soft, dark water.
First described by Dieter Vogt in 1978.
16 facts checked with sources
Described by Vogt, 1978 as Rasbora urophthalma brigittae. WRONG-NAME WARNING: Seriously Fish says it 'is sometimes confused with the congener B. merah', and B. urophthalmoides is often sold under its name.
FishBase: Boraras brigittae summary · Seriously Fish: Boraras brigittaeLegacy has no family. FishBase (preferred for taxonomy) uses Danionidae, subfamily Rasborinae; Seriously Fish still lists Cyprinidae.
FishBase: Boraras brigittae summary · Seriously Fish: Boraras brigittaeSeriously Fish gives 2.0 cm SL, matching legacy. FishBase's 3.5 cm is a record maximum total length (TL); its common length is 1.8 cm SL.
Seriously Fish: Boraras brigittae · FishBase: Boraras brigittae summaryInside Seriously Fish's 20-28 °C.
Seriously Fish: Boraras brigittae · FishBase: Boraras brigittae summaryInside Seriously Fish's 4.0-7.0 (preferred). FishBase gives a narrow 6.5-7.0.
Seriously Fish: Boraras brigittae · FishBase: Boraras brigittae summaryLegacy has no hardness; sourced value recorded.
Seriously Fish: Boraras brigittae · FishBase: Boraras brigittae summarySeriously Fish base of at least 45 x 30 cm for a group x 30 cm height = 40.5, about 41 L. Legacy 20 L is about half that.
Seriously Fish: Boraras brigittaeNo lifespan on FishBase or Seriously Fish. Wikipedia's 'up to 8 years' cites a hobby magazine (Tropical Fish Keeping), not a primary source. Left unknown.
Wikipedia: Boraras brigittaeSeriously Fish also notes a 'rather timid nature'.
Seriously Fish: Boraras brigittaeNo source names a swimming level.
FishBase: Boraras brigittae summaryLegacy has no range field; sourced value recorded.
Seriously Fish: Boraras brigittae · FishBase: Boraras brigittae summaryRounder females verified. 'Males brighter red' was not stated word-for-word in a fetched source.
Seriously Fish: Boraras brigittaeLegacy breeding type 'egg-depositor (plants)' is borderline: Seriously Fish calls it an egg scatterer, FishBase says eggs are placed on the underside of leaves.
Seriously Fish: Boraras brigittae · FishBase: Boraras brigittae summaryHatch time agrees (FishBase 48 h; Seriously Fish 'by the second day'). Legacy 5-20 eggs is within FishBase's 'up to 50' but the exact range is not sourced.
FishBase: Boraras brigittae summary · Seriously Fish: Boraras brigittaeBorneo blackwater origin verified. 'One of the smallest aquarium fish' is not stated as such in a source (Wikipedia: 'a very small species'). Etymology per Wikipedia citing ETYFish; Seriously Fish: 'named for the author's wife'.
Seriously Fish: Boraras brigittae · Wikipedia: Boraras brigittae