Clown Rasbora

Rasbora sp.

Clown Rasbora (Rasbora sp.) — Easy care, Peaceful, under Rasbora. Minimum tank in the app: 34 US gal min; aim for 73–82°F and pH 5.5–7.5. Clown Rasboras are ideal for aquarists seeking a lively, peaceful addition to a community tank, thriving in groups for optimal display.

Clown Rasbora (Rasbora sp.) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size34 US gal min
pH range5.5–7.5
Temperature73–82°F
Max size3.9 in (10.0 cm)
Captive lifespan5–10 years
SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Southeast Asia

  • East & Southeast Asia

Regional colours match the stocking calculator’s origin map.

Clown Rasbora Tank Setup

Aim for a spacious layout with ample mid and top swimming areas, complemented by plants or decor that offers shelter without excessive obstruction. A gentle water flow and a substrate that mimics their natural environment will enhance their well-being, while moderate lighting can highlight their colors without causing stress.

What Do Clown Rasboras Eat?

They feed on micro foods and can be competitive, particularly when hungry. Offering a varied diet helps maintain health and color, but be mindful of feeding strategies to ensure all members receive adequate nutrition without overwhelming the weaker individuals.

Clown Rasbora Tank Mates

Given their peaceful nature and small size, Clown Rasboras pair well with similarly sized community fish that occupy different tank levels. Avoid larger or more aggressive species that may outcompete them for food or territory. Within their group, maintaining a minimum of six ensures they feel secure, reducing stress and promoting natural behaviors.

Are Clown Rasboras Good for Beginners?

In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate the importance of group size, leading to stress and reduced vitality in smaller shoals. neglecting water quality parameters, particularly pH and temperature, can impact their health, as can choosing inappropriate tank mates that disrupt their peaceful nature.

Building a community? Run the full list through the stocking calculator before you add anything else.

Log tests and reminders in App-aquatic—free, same data you see here.