My Black Ocellaris Clownfish pair started spawning a couple of months ago. Black Ocellaris are typically from Australian waters near Darwin. They can be tricky to spawn. They are need to be 5 to 6 years old, extremely well feed and comfortable in their environment. My pair spawns about once a month with is different then most of my other pairs. My other pairs typically spawn about every two weeks. Typically with Black Ocellaris their spawns are smaller than orange Ocellaris and they sometimes like to just stop spawning for a while as well.