Common Name(s)
Black neon tetra
Scientific Name
Hyphessobrycon herbertaxelrodi
Family
Characidae
Origin
Paraguay river basin
Temperament
Peaceful
Maximum Size
1.6 inches
Minimum Tank Size
20 gallon high
Tank Setup
Nothing in particular
Tank Region
Middle-top
Diet
Omnivore
Breeding
Egg-scatterer. Doesn’t take care of it’s young.
Compatibility
With other temp-compatible community fish
Ease of Keeping
Easy
Care
pH: Doesn't matter; Temperature: 68-83 Fahrenheit
Black_neon_tetra.jpg

By Debivort at the English language Wikipedia, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=3857838

Females are larger and more deeper bodied than males.

It's a schooling fish, so they need groups of 6+ of their own species.