Head and Tail Light Tetra

The Head and Tail Light Tetra (Hemigrammus ocelifer) is a charming and active tetra species known for the distinctive bright spots at the base of its tail and above its eyes that resemble vehicle lights. These peaceful, schooling fish create an engaging display as their "lights" flash while they swim through the aquarium. Hardy, easy to care for, and endlessly entertaining to watch, Head and Tail Light Tetras are excellent choices for community aquariums and make a unique addition to any peaceful setup.

Care Sheet – Head and Tail Light Tetra (Hemigrammus ocelifer)

Temperament

• Peaceful, active schooling fish

• Best kept in groups of 8 or more for natural behavior

Adult Size

• 1.5–2 inches

Minimum Tank Size

• 20 gallons for a school

Water Parameters

• Temperature: 72–80°F

• pH: 6.0–7.5

• Hardness: Soft to moderately hard (2–15 dGH)

• Ammonia/Nitrite: 0 ppm

• Nitrate: <20–30 ppm

Diet

• Omnivorous

• Feed a varied diet:

  • High-quality micro-flakes or small pellets

  • Frozen or live foods: brine shrimp, daphnia

  • Occasional vegetable matter

• Feed small amounts 1–2 times daily

Behavior & Compatibility

• Excellent for peaceful community tanks

• Compatible with:

  • Other small tetras, rasboras, and peaceful fish

  • Corydoras and other bottom dwellers

  • Dwarf gouramis and small peaceful shrimp

• Avoid large or aggressive fish

Aquarium Setup

• Planted tanks with open swimming space

• Moderate lighting to showcase their distinctive spots

• Gentle water flow

• Clean, well-oxygenated water

Care Level

• Easy

• Very hardy and beginner-friendly

Lifespan

• 3–5 years with proper care

Special Notes

• Distinctive bright spots at head and tail resembling lights

• Very active and entertaining to watch

• Peaceful and excellent community fish

• Schooling behavior creates engaging movement in aquarium