The described method can be adapted for domestic commercial production of neon tetras. At approximately 1 month of age, larvae obtained their adult body coloration. Thereafter, fish were fed nauplii of brine shrimp Artemia sp., shaved cattle liver, and formulated diets. Rotifers and boiled egg yolk were the first larval feeds. The domestic population reached sexual maturity at 5–6 months of age, and broodfish pairs produced an average of 82 larvae every 2 weeks over a period of 1 year. Fish reared in the laboratory had a significantly higher number of larvae (82 larvae/female) than broodstock collected from the wild or cultured abroad (28 larvae/female). A spawning substrate (nylon brush) was available for egg deposition. If I was to try, I would put the tetras in their own tank with a lot of plants.
Not to mention the lack of suitable foods. I am sure most neons breed in most of the tanks theyre kept it- its the predation on the fry that keeps you from seeing any action. The water was also conditioned with humic acids (0.04%). Its not really the breeding part that is difficult. Broodfish pairs were routinely spawned in acidified, soft water at 25☌ (pH, 5.5–6.5, adjusted with phosphoric acid total alkalinity, 3.2 mg/L, and total hardness, 6.0 mg/L, as CaCO 3). In this study, we describe a method for artificially breeding the neon tetra that can be adapted to domestic commercial production. Usually, the first step in breeding this Tetra species is to determine the gender, sometimes called sexing. If you have the patience and commitment, you might pull it off at the first time of asking. Before you begin to breed your Neon Tetra, you should first have a school of Neon Tetras in your main aquarium.
My experience has been that a slightly lower temperature tends to have better results. Most neon tetras available in the United States are imported from Southeast Asia, where they are farm raised, or from South America, where they are collected from the wild. Breeding Neon Tetras at home is possible but requires specific conditions. To breed Neon Tetras, I recommend setting the temperature to the colder side of this, in the range of 75-77 degrees. The neon tetra Paracheirodon innesi is one of the most valuable species in the ornamental fish trade.
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