Marble Hatchet Tetra

Care requirements

• Minimum tank 30 × 12 in (75 × 30 cm) or larger.
• Adult size 1.4 in (35 mm), excluding the tail
• Temperature 75–79°F (24–26°C)
• pH 6.5–7
• GH 4–10 dGH
• Ammonia and nitrite 0 ppm

Housing & compatibility

Use a tightly fitting lid with all gaps covered. Keep a suitable group with calm tankmates that do not monopolize surface food.

Check the lid around cords and airline before adding them. They’re quick to jump from the surface.

Diet

Offer bite-sized floating insect-based foods and small live or frozen foods at the surface. Check that food is eaten before it sinks out of reach.

Hikari Micro Pellets is a prepared option if the pellet size fits. Offer Hikari Bio-Pure Frozen Daphnia for variety.

Reference photo by SOK, Sven Kullander. Original photo · CC BY-SA 4.0