Harlequin rasbora

The Harlequin is a popular aquarium fish and ideal for a community of other small, peaceful fishes. Harlequins are shoaling fish and need to be kept in groups, ideally in aquariums with densely planted areas and plenty of hiding spots.

The Harlequin is a popular aquarium fish and ideal for a community of other small, peaceful fishes. Harlequins are shoaling fish and need to be kept in groups, ideally in aquariums with densely planted areas and plenty of hiding spots. Over time the body shape deepens and older fish often exhibit a high-backed shape. Good water quality is required for long-term health and the fish prefer slightly soft, acidic water. A good aquarium fish for planted tanks or peaceful communities. Harlequins also make good tank-mates for timid or nervous fish.

Harlequin Rasbora Facts

Behaviour Peaceful, shoaling 
Typical size 3cm 
Max size 5cm 
Tank Area Middle, all 
Min Tank Size 60cm 
Min Number in Tank 6 
Temp Min: 22℃ Max: 26℃ 
Feeding Flake, frozen, live foods 
pH Range 5-8 
Hardness vs,s,m,h

Family Cyprinidae (Minnows & Carps) | Synonyms Rasbora heteramorpha, R. heteromorpha | Other names Red rasbora | Origin Asia; Thailand, Sumatra | Breeding Open water egg scatterers | Natural Water Conditions pH 5-7, very soft to medium | Natural Habitat Forest streams | Sexing Males are thinner. The black marking on the body extends at the bottom on males; on females the edge is flat

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