Columbian tetra ( 9 pcs)

Colombian tetra (Hyphessobrycon columbianus) 
A bold, flashy schooling fish—great choice if you like movement and color.

 Quick Profile

• Size: ~5–6 cm (2–2.5 in)

• Lifespan: 4–6 years

• Temperament: Semi-peaceful, active

• Level: Beginner–intermediate

• Best kept in: Groups of 6–8+

 Tank Setup

Tank size

• Minimum 90 liters / 24 gallons for a group

• Longer tanks are better (they’re fast swimmers)

Water parameters

• Temperature: 22–28°C

• pH: 6.0–7.5

• Hardness: Soft to medium

• Stable, clean water is key

Decor

• Planted tank with open swimming space

• Driftwood, rocks, dark substrate = best colors

• Moderate flow

 Behavior

• Schooling fish—colors and confidence improve in groups

• Can be fin-nippy if kept in small numbers

• Males show deeper red/blue shades

 Diet

Omnivore, easy eater:

• Quality flakes or micro-pellets

• Frozen/live foods: bloodworms, daphnia, brine shrimp

• Feed small amounts 2 times daily

 Tank Mates

Good companions

• Other tetras (Congo, lemon, black neon)

• Rasboras

• Corydoras

• Peaceful dwarf cichlids

• Livebearers (guppies, platies—watch fins)

Avoid

• Long-finned slow fish

• Very aggressive species

• Very small shrimp (may be eaten)

 Plant-Friendly

✔ Safe with plants
✔ Looks stunning with green plants + dark background

Common Issues

• Faded color → stress, poor diet, low group size

• Fin nipping → increase school size, tank space