Editing Neon tetra (section)

===Breeding===
[[File:NeonTetra.JPG|thumb|Neon tetra]]

The male is slender, and the blue line is straighter. The female is rounder, producing a bent blue line. Some aquarists say the females look plumper when viewed from above. However, the straightness of the line and the plumpness of the female might occasionally be due to the eggs she is carrying. A neon tetra can appear slightly plump in the belly due to having overeaten.

Neon tetras need dim lighting, a DH less than one, about 5.5 pH, and a temperature of {{convert|75|F|C|0}} to breed. There also needs to be a lot of tannins in the water. Neon tetras are old enough to breed at 12 weeks.<ref>{{Cite web |url=https://www.practicalfishkeeping.co.uk/features/how-to-breed-neon-tetras/
|title=How to breed Neon tetras
|website=Practical Fishkeeping|date=13 June 2016
}}</ref>

Breeding neon tetras is considered to be difficult in home aquariums.<ref>{{Cite web|url=https://freshwatercentral.com/breeding-neon-tetras|title=Breeding Neon Tetras|language=en-US|access-date=2019-05-01|archive-date=2019-05-09|archive-url=https://web.archive.org/web/20190509064558/https://freshwatercentral.com/breeding-neon-tetras|url-status=dead}}</ref> However, it is becoming more common, with less than 5% of specimens currently sold in America caught in the wild, and more than 1.5 million specimens imported to America each month from fish farms.<ref>{{Cite web|url=https://www.thesprucepets.com/neon-tetra-paracheirodon-1381835|title=Brightest Little Fish Has an Amazing History|website=The Spruce Pets|language=en|access-date=2019-05-01}}</ref>