Rummy Nose Tetra

Overview

The Rummy Nose Tetra (Hemigrammus bleheri, commonly mislabeled as H. rhodostomus) is prized for its brilliant red head, checkerboard body pattern, and precise schooling behaviour — one of the tightest schoolers in the hobby. The red nose intensity is a direct indicator of water quality.

Water Parameters

• Temperature: 24–27°C (75–81°F)
• pH: 5.5–7.0 (soft, slightly acidic preferred)
• Hardness: 2–8 dGH

Tank Setup

• Minimum tank size: 90 litres for a group of 8–10
• Substrate: Dark sand or fine gravel
• Decor: Planted with open swimming channels; driftwood and leaf litter
• Flow: Moderate; they appreciate gentle current

Diet

• Base: Quality flake or micro pellet
• Treats: Frozen daphnia, bloodworms, brine shrimp
• Frequency: 2 meals daily; they are active foragers

Temperament & Tank Mates

• Temperament: Peaceful, active schooling fish
• Best companions: Corydoras, small gouramis, rasboras, Otocinclus, dwarf shrimp (adults)
• Avoid: Slow long-finned fish, large predatory species
• Schooling: Minimum 8; 12+ for best effect

Breeding

• Difficulty: Moderate to difficult; requires very soft, acidic water
• Process: Scatter eggs among fine plants; parents eat eggs

Common Issues

• Fading red nose = poor water quality — perform water change
• Can be shy initially; provide dense planting
• Lifespan: 3–5 years with excellent care