Hey SFplaya1, assuming you are asking for critter ID's (?) - the snail looks like a cerith snail. Not quite sure what you are referring to as "eggs" in your chaeto reactor, I don't see any eggs in the photo - I see some grape caulerpa (the light green spheres in clusters) and some air bubbles trapped in what looks like cyanobacteria, below that. There are a few other specks, but can't tell from the photo what they are...