Green Neon Tetra
The Green Neon Tetra is a tiny South American tetra with a brilliant blue-green stripe. It is best suited to a mature, calm aquarium with soft, acidic water.
 
Key Features
Scientific name: Paracheirodon simulans.
Adult size: Approximately 2.5–3 cm.
 
Care Requirements
Group size: Eight to ten or more.
Temperature: 24–27°C.
pH: Approximately 5.0–6.5 for aquarium maintenance; avoid abrupt changes.
Hardness: Soft water, approximately 1–8 dGH.
Aquarium: 45–60 litres or more for a small group; larger for a community.
Diet: Tiny flakes or micro-pellets, plus small suitable frozen or live foods.
Setup: Dim or shaded lighting, plants, wood and gentle flow.
 
Temperament
Peaceful but easily outcompeted. Choose small, gentle companions with matching water needs.
 
Notes
Do not add to a newly established aquarium.
This is a distinct species from ordinary Neon and Cardinal Tetras.