The most important thing to understand is that different breeders have different strategies for breeding clownfish. The methods that I describe are the methods that have worked well for me.



Things you will need for hatching:

Materials:
½ gal, 2 gal, 5 gal, 10 gal tanks ( I use 10G tanks with sides and bottom painted black.  The front is left clear but covered for the first several days.)
Air pump w/ tubing and air stone
A gang valve to adjust the bubbles
Small 25W heater
Thermometer
Rotifer strainers (120 and 53 microns)
A dense rotifer culture
Baby brine shrimp (optional, on day 4-5.)
Marine flake food (see food recipes.)
Tank Conditions:
Salinity: 1.020
Temperature: 80-84 degrees
Everything else same as broodstock tank



Specific details about the entire system can be found on this page: 

Note: I start the hatching tank with water siphoned from the broodstock system.  This lowers stress on the eggs.

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Most common species of clownfishes: Days to hatch

         Species                                           Incubation time

Amphiprion ocellaris                       
Ocellaris Clownfish                           7-8 days

Amphiprion percula                        
Percula Clownfish                             7-8 days

Amphiprion clarkii                          
Clark's Clownfish                              6-8 days

Amphiprion fenatus                         
Tomato Clownfish                             8-10 days

Amphiprion polymnus                     
Saddleback Clownfish                        7-8 days

Amphiprion nigripes                        
Maldives Clownfish                            7-8 days

Premnas biaculeatus                    
Maroon Clownfish                              6-8 days