What are these little white dots growing on and around heater?

[varo]

Is this something chemical leaking from the heater or some type of egg? Thank yall for context, this tank is about three years old, has nassarius snails, some turbos, a blue urchin…

 

[JGT]

Snail eggs.

 

[ScottJ]

Coralline algae?

 

[ScottJ]

Snail eggs.

Yup. I looked closer'

 

[JGT]

Think they are nassarius.

 

[Syntax1235]

Yep. Snail eggs. Your fish will have some nice snacks!

 

[WheatToast]

Yep. Snail eggs. Your fish will have some nice snacks!

+1. The planktonic larvae of Nassarius snails are easily captured by filters, pumps, and predators and rarely reach adulthood.