Harlequin Rasbora

Trigonostigma heteromorpha

A peaceful, hardy schooling fish with a distinctive black triangle marking. Ideal for planted community tanks.

Care Parameters

Adult size

5 cm

Min tank

60 L

Temperature

23–28°C

6–7.5

2–10 dGH

Diet

Omnivore

Temperament

Peaceful

Water zone

Middle

Difficulty

Beginner

Schooling

School of 8 or more.

Suitable Plants

Dwarf Sagittaria

Care profile for Dwarf Sagittaria: low-medium light, none CO₂, beginner difficulty.

Vallisneria spiralis

Care profile for Vallisneria spiralis: medium light, none CO₂, beginner difficulty.

Cryptocoryne beckettii

Care profile for Cryptocoryne beckettii: low-medium light, low CO₂, beginner difficulty.

Rotala rotundifolia

Care profile for Rotala rotundifolia: medium-high light, medium CO₂, intermediate difficulty.

Dwarf Baby Tears

Care profile for Dwarf Baby Tears: high light, high CO₂, advanced difficulty.

Compatible Invertebrates

Rabbit Snail

A large, striking freshwater snail with a conical shell and colorful body. Comes in orange, yellow, and dark variants. Active algae and detritus consumer, but slow breeder.

Vampire Crab

A small, semi-terrestrial crab with striking purple coloration and bright yellow eyes. Requires a paludarium setup with both land and water areas.

King Kong Shrimp

A solid black color morph of Caridina cantonensis with minimal white markings. One of the rarest and most expensive shrimp variants. Requires expert-level water parameters.

Bamboo Shrimp

Also called the wood shrimp, it stations itself in the current and fans microscopic food from the water with its four feathery feeding fans. Needs brisk flow (8-10x tank volume per hour) and regular feedings of powdered or micro food, or it will slowly starve in a clean tank.