Splash Tetra (Copella arnoldi)

Family: Lebiasinidae

Splash Tetra — a Lebiasinidae from South America, peaceful mid-water shoaler; confidence comes in numbers. Reaches 3.2–4.6 cm; groups of 8 minimum; more is visibly better. 25–29 °C.

Care parameters

Water temperature
25–29 °C
pH
6–8
GH hardness
5–12 dGH
Adult length
3.2–4.6 cm
Minimum tank
25 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Peaceful mid-water shoaler; confidence comes in numbers
Origin
South America

Species overview

A Lebiasinidae species native to South America: Copella arnoldi lives bottom-dwelling over warm freshwater streams and lakes. Peaceful mid-water shoaler; confidence comes in numbers. Adults reach 3.2–4.6 cm. In a community tank it pairs well with Other small peaceful tetras and rasboras.

Native biotope

Habitat
Warm freshwater streams and lakes
Flow
Still to gentle current
Dissolved O₂
Moderate oxygen levels

Aquascape & hardware

Substrate
Fine sand and gravel
Hardscape
Driftwood and smooth stones
Plants
Hardy common aquarium plants

Temperament, diet & tankmates

Schooling
Groups of 8 minimum; more is visibly better
Diet
Small omnivore; quality flakes and small frozen foods
Recommended tankmates
  • Other small peaceful tetras and rasboras — Form a mixed, calm mid-water mass
Avoid keeping with
  • Single-species isolation — A lone tetra is a stressed tetra

Breeding & notes

Sexual dimorphism
Subtle external differences
Breeding method
Typical egg-scattering characin; adults eat the eggs

Frequently asked questions

Is Splash Tetra easy to keep?

Intermediate difficulty. Peaceful mid-water shoaler; confidence comes in numbers; groups of 8 minimum; more is visibly better.

What temperature and water chemistry does Splash Tetra need?

Set the heater to 25–29 °C and avoid swings. pH 6–8, GH 5–12 dGH suit it.

How big does Splash Tetra get, and what tank size?

Full size is 3.2–4.6 cm. Minimum tank: 25 L, with open swimming space along its bottom-dwelling habits.

What does Splash Tetra eat?

Small omnivore; quality flakes and small frozen foods. Feed two small meals a day rather than one large one.

Can Splash Tetra live with other fish?

Peaceful mid-water shoaler; confidence comes in numbers; groups of 8 minimum; more is visibly better. Good company: Other small peaceful tetras and rasboras — Form a mixed, calm mid-water mass. Keep away from Single-species isolation — A lone tetra is a stressed tetra.

Where does Splash Tetra come from?

Native to South America, where it lives in warm freshwater streams and lakes. Still to gentle current; Moderate oxygen levels.

Does Splash Tetra jump?

Not a noted jumper — a standard cover still keeps dust and spray in.

How does Splash Tetra breed?

Typical egg-scattering characin; adults eat the eggs. Subtle external differences.