The video shows Octopus bimaculoides (colder water animal, typically from the US West Coast) eggs hatching. This is a large egg species where I suspect yours are small egg. The small egg hatchlings are typically not fully formed and float in the currents for about a month where the large egg animals typically find their way to the substrate after about 1 week where they find food among the rocks. I have no good guess as to what kind of octopus these may be. Unfortunately, a photo at hatching won't help but it would be nice to have a picture or two in the thread as they develop and hatch.Hello, the octopus baby was born in the video.? thanks.