Green Neon Tetra Green Neon Tetras are a fragile fish to import which makes them a rarity in the trade. Green neons display a bright reflective green and create one of the most beautiful schools in nature and the aquarium. These fish do not live in alkaline hard water, they die in it. Due to their small size they should not be mixed with larger aggressive discus, unless the intent is to provide them with an exotic treat. These fish are all wild caught and size will vary. Scientific Name: Paracheirodon simulans Origin: Amazon Basin Lifespan: 4 years Max Size: 3/4 inches Food: flake, live, frozen Shipping Size: Approx. 1/2 inch