Harlequin Rasbora
A hardy schooling fish with a distinctive black wedge pattern. Harlequins are excellent community fish and look best in groups.
tankSize
60L (15 gal) minimum for a school
careLevel
Beginner
temperature
23 to 27C
temperament
Peaceful
diet
Flakes or micro-pellets plus occasional frozen foods
lifespan
4 to 6 years
aloneOrCommunity
Community (schooling)
weeklyMaintenance
Water changes and basic cleaning
Best for
- Beginner community tanks
- Owners who want an active schooling display
- Planted aquariums with gentle flow
- Tanks with peaceful tank mates
Not ideal for
- Aggressive community setups
- Very small tanks with no room for a school
- Uncycled tanks
- People who want a solitary, interactive fish
Temperament
- Peaceful and social
- More confident in groups of 8 or more
- Mixes well with other calm species
Daily routine
feeding: Feed once or twice daily; remove uneaten food.
check: Watch for active schooling and normal fins.
enrichment: Plants and open swimming space support natural behavior.
Living fit
smallHome: Great fit for modest-sized community aquariums.
kids: Fun to watch and easy to care for with routine.
firstTimeOwner: Very beginner-friendly once the tank is cycled.
Health notes
- Hardy but still needs stable water quality.
- Overfeeding can quickly degrade water parameters.
- Quarantine new fish to protect the community.
Cost and time
time: Low daily time; simple weekly maintenance.
cost: Affordable fish; standard community setup cost.
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