Unknown Pale white Ovals

[RFLKPTR]

Got a bunch of these in a 3 year old, recently moved and re-established tank. Added 75 pounds of dry rock, and they have magically moved to the other side of the tank, onto the new rock

I was thinking Chiton, but the surface is completely smooth. Pale white, about 2mm long... Not necessarily all a regular ovaline shape, but many are. You can see the variations in the below photo.

 

[Timfish]

Snail egg cases

 

[rtparty]

Nerite snail eggs

 

[RFLKPTR]

Snail egg cases

Oh awesome! Yep, looking it up, they are Nerite snail eggs.

A quick search revealed that most Nerites need brackish water to hatch, and even then, they have a larval stage which makes rearing in home aquaria a challenge.

Thanks Timfish and rtparty!