These are excellent fish. Known as "neon" rainbow they are also known as Melanotaenia praecox. They are perfect examples of what the PRAECOX were when they first became available commercially in Australia. They are hatchery spawned, pond raised.
Because they have been raised in the pond the body shape is perfect as is the colour.
They are also strong, disease resistant fish, as a result of having to survive in a natural pond. To the best of our knowledge. Ausyfish Pty. Ltd. is the only commercial facility producing Praecox in earth ponds.