[mike31154]

The young will not survive in the display, they'll be food for your other critters in short order, or get captured in whatever filtration system you're running, overflow, skimmer etc. To raise the young you need to be set up well ahead of time with a breeding tank, phytoplankton, rotifers. Even with the right set up, there's generally a high attrition rate. When they first hatch, clownfish are considered larvae. It takes a few days to a week for them to reach a 'metamorphosis' stage after which they start looking like little clownfish with red colour etc. The metamorphosis is another point where there are high losses.

My Maroon pair has been spawning regularly for well over a year now. Pretty much 7 days from spawn to hatch like clockwork, then a few days break before the next spawn. Once you start seeing the eyes, kind of silvery, hatch is imminent, usually a few hours after lights out.

The book Clownfishes by Joyce D Wilkerson is a great resource if you're interested in breeding the critters. Sicklid in Kamloops has quite the production going, he can surely provide some excellent advice. I've been meaning to set up a breeding tank myself, but too much other stuff on the go.