I recommended letting the first few batches go. I know it may be hard, but there are reasons for doing so. First and most important, it allows the pair to get used to laying and caring for the eggs. The clutches will get bigger and the likelihood of healthier babies is higher. The female will lay her eggs closer together (the first few clutches my female laid were scattered quite a bit, and she even laid in two spots once) so the likelihood of fertilization is higher. The male will get used to tending to the clutch. It's his job to keep the clutch clean, removing debris and dead eggs, and providing the proper flow. The male may also leave the clutch unguarded and predators will eat the clutch (typically your clean-up crew). They may also eat the eggs themselves.
Second, it allows you to prepare. You need to order rotifers, rotifer food, and start to think about follow-up foods. Many of us use Reed Mariculture products -- RGComplete to feed your rotifers and APBreed TDO Chroma Boost (there are other options, so do some research).
Third, you can mentally prepare yourself for what's ahead. It really is a labor of love, since cleaning buckets of rotifers, keeping the grow out tank clean, and feeding multiple times a day can be draining.
In terms of hatch time, it depends on the temperature of your tank. My tank is about 80 degrees and the eggs typically hatch in 8 days. My pair have a new clutch every two weeks. Other breeders who I speak to experience the same thing -- once they start breeding, unless there is a disruption (tank conditions change, new stressors, etc.) they won't stop -- so you'll have plenty of time to get it right.
In terms of the process, aside from the sticky, just Google "clownfish breeding" and you'll find a ton of good information, including YouTube videos. My recommendation is to read a lot and watch a lot of videos -- and do what makes it easier for you. That way, you're most likely to raise healthy clowns. Good luck!
