Basic Information

• Common Name: Costae Tetra
• Scientific Name: Hemigrammus costae
• Family: Characidae
• Origin: South America
• Adult Size: Around 1.5–2 inches (4–5 cm)
• Lifespan: 3–5 years
• Temperament: Peaceful and active schooling fish

Tank Requirements

Tank Size

• Minimum tank size: 15–20 gallons
• Best kept in groups of 6 or more for natural schooling behavior.

Water Parameters

• Temperature: 22–28°C (72–82°F)
• pH: 6.0–7.5
• Water Hardness: Soft to moderately hard

Aquarium Setup

• Use planted aquariums with open swimming space.
• Dark substrate helps enhance their colors.
• Gentle filtration and stable water conditions are preferred.
• Add driftwood and floating plants for a natural environment.

Compatible Tank Mates

• Other peaceful tetras
• Rasboras
• Corydoras
• Small gouramis
• Dwarf cichlids

Avoid aggressive or very large fish.