The Strawberry Rasbora (Boraras naevus) is a small, brilliantly colored freshwater fish known for its vibrant red hue and peaceful demeanor. Native to the slow-moving, tannin-rich waters of Thailand, this species is perfect for planted nano aquariums, where its beauty and schooling behavior can truly shine.
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A Name That Reflects Its Coloration
The "Strawberry" name comes from its deep red to pinkish coloration, which intensifies under ideal conditions. A small black spot near the tail distinguishes it from other Boraras species, giving it a unique yet subtle charm.
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Growth and Tank Requirements
Strawberry Rasboras are one of the smallest aquarium fish, growing to a maximum size of just 0.6-0.8 inches. Due to their tiny size, they thrive in nano aquariums of 5 gallons or more, though 10+ gallons is recommended for larger groups. Their ideal tank setup includes dense plant cover, driftwood, and leaf litter, which replicate their natural habitat and provide security.
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Care and Water Parameters
These delicate fish thrive in soft, slightly acidic water, with:
Temperature: 72-80°F
pH Range: 4.5-6.5
Water Hardness: Very soft to moderately soft
A gentle filter with minimal flow is recommended, as they come from calm, still waters. Tannins from Indian almond leaves or botanicals can help simulate their natural environment and enhance their red coloration.
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Diet and Feeding
Strawberry Rasboras are micro-predators, requiring tiny, high-quality foods to stay healthy. Their diet should include:
Crushed micro pellets and fine flakes
Live or frozen foods such as baby brine shrimp, daphnia, and microworms
Occasional plant-based foods like spirulina powder for added nutrition
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Unique Behaviors
These peaceful, shy fish thrive in schools of at least 8-10 individuals, as they feel more secure and display natural schooling behavior in larger groups. Their small size makes them ideal for species-only setups or carefully selected tank mates, such as other tiny Boraras species, celestial pearl danios, or dwarf shrimp.
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Please note that these are general guidelines, and for more accurate values, we encourage you to contact Living Aquarium by phone or in person. Within store hours, our team of experts are always happy to answer any questions you may have and provide personalized guidance on care.