I have the Ocellaris clownfish. I looked at the eggs again this morning when the light came on, looks like they ate some, only about 15 or so eggs left. I've not changed her eating/food at all. I think the fake wall threw her off. Right before she laid the eggs, she was swimming back and forth between the fake wall and the front corner of the tank. She laid the eggs later in the day also. She's like clock work- she usually lays her eggs around 3 pm. This time it was close to 5:30. I will get some more acrylic and make an identical wall, like you suggested and switch them out when the next batch is ready to hatch.