How soon after spawning will my Neon Tetra lay her eggs?

Spawning is the process of laying eggs and having the males fertilize them. So if they are spawning , they are laying their eggs. Once they have finished laying their eggs, get to adult fish out of the tank and make the tank as dark as possible (the eggs are light sensitive).Depending on the temp, it may take from three days or more to hatch and then you need to feed them very fine foods such as infusoria.