Description
Bring elegance and vibrant color to your aquarium with the Purple Harlequin Rasbora (Trigonostigma heteromorpha), a unique variation of the popular harlequin rasbora fish. Known for its iridescent purple hues, this Rasbora fish is one of the most striking purple freshwater fish available in the aquarium hobby.
The rasbora harlequin originates from Southeast Asia, inhabiting calm streams and peat swamps with soft, acidic waters. While the standard harlequin rasbora is prized for its copper-orange body and distinctive black triangular marking, the harlequin purple variety takes this beauty further with deep violet-purple iridescence that shines under aquarium lighting. Their peaceful schooling behavior makes them perfect purple tropical fish for any aquascaped or community aquarium.
Purple harlequin rasboras grow to an adult size of 1.5–2 inches (4–5 cm), making them excellent for nano aquariums and larger planted setups. Their body shimmers in shades of violet, lavender, and pink depending on lighting, while the classic black triangular patch near the tail remains a defining characteristic.
Harlequin rasboras are peaceful, schooling fish best kept in groups of 8 or more. In larger shoals, they swim in unison and display even more vibrant coloration. They thrive alongside other small, gentle species such as Neon Tetras, Chili Rasboras, dwarf Gouramis, Corydoras, and freshwater shrimp. Their calm nature makes them an excellent addition to planted aquascapes and community tanks.
At our Splashy Fish tropical fish store, our Purple Harlequin Rasbora for sale and other freshwater fish for sale are carefully selected and packed with love! Visit us to buy them online or at our aquarium store in Virginia for more betta fish for sale, freshwater shrimp for sale, live aquatic plants for sale, and aquarium supplies.
WHAT YOU CAN EXPECT FROM THIS FISH:
Unique purple variety of the classic harlequin rasbora fish
Grows to 1.5–2 inches, perfect for nano and community tanks
Peaceful schooling fish; best in groups of 8 or more
Hardy, beginner-friendly, and adaptable to many water conditions
A true standout purple freshwater fish for aquascapes
RECOMMENDED TANK PARAMETERS:
Tank Size: Minimum 15 gallons for a school
Temperature: 74°–80°F (23°–27°C)
pH: 6.0–7.5
Hardness: 3–10 dGH
Filtration: Gentle to moderate flow with clean, well-oxygenated water
CARE GUIDELINES:
Diet: Omnivorous. Feed high-quality flakes, micro pellets, and supplement with live or frozen foods such as brine shrimp, daphnia, and bloodworms to enhance coloration.
Tank Setup: Provide live plants, soft substrate, and open swimming areas. Dim or subdued lighting enhances their purple glow.
Behavior: Social and peaceful, schooling species that display their best colors in groups.
Purple Harlequin Rasbora Frequently Asked Questions (FAQs)
Can I keep Purple Harlequin Rasbora with Betta Fish?
Yes, you can keep Purple Harlequin Rasboras with Betta fish, as both are peaceful species when housed in the right conditions. Since rasboras are active mid-level schooling fish and bettas often patrol the upper levels, they rarely conflict. Make sure the tank is at least 15–20 gallons, provide plants and hiding spots, and avoid overcrowding to minimize stress for both species.
What is the lifespan of Purple Harlequin Rasbora?
The Purple Harlequin Rasbora has an average lifespan of 4–6 years in a well-maintained aquarium. Consistent water quality, a varied diet of high-quality flakes, micro pellets, and occasional live or frozen foods, along with being kept in a proper school, all help extend their longevity and keep their purple coloration vibrant.
Are Purple Harlequin Rasbora aggressive?
No, Purple Harlequin Rasboras are not aggressive. They are peaceful schooling fish that do best in groups of 8 or more and thrive in community aquariums with other gentle species like tetras, guppies, dwarf gouramis, and shrimp. Their calm, social nature makes them an excellent choice for both beginner and experienced aquarists.
