Woohoo! The grammas finally placed eggs where I can see them! And papa guarding them:

 

Andy these are some awesome pics. What do you think about the egg color?

I don't know what to think anymore, honestly. After defending the spot from all comers for a couple of hours, the male just abandoned it. The eggs are still there and haven't changed much (nor been eaten), so I'm tempted to believe that they might be snail eggs. Hmph

Well, the opaque center in the egg makes me think they're not fertile...that's what happens to Centropyge and Synchiropus eggs when they die in incubation. That would explain why the male lost interest. Just a guess...

That's a good point, Matt, and explains him defending the area better than mine. On the other hand, the shrimp in the tank didn't eat these. They always leave toxic snail eggs alone. Do fish produce toxins to protect their eggs?