I have 2 black & white strip damsels. The larger one looks to being laying eggs on the titanium heater. I'll see all these whites dots on the heater and the damsel swimming around it and chasing any other fish that comes by. even the lion fish. I have also seen these in the corner of the tank but that ended up disappearing after a few days. But I have seen them on the heater many many times. Are they eggs?