What are these ??????

[Jordan92595]

Idk what these are but they came with the rock my father in law got and have been growing in his tank ever since. It’s like white dots

 

[Sharkbait19]

Spirorbid worm, harmless filter feeder.

 

[Jordan92595]

 

[Sharkbait19]

Perhaps not spirorbid, maybe coralline development? Any pics under white lights?

 

[sixty_reefer]

White light could help, possibly limpet

 

[Soren]

Idk what these are but they came with the rock my father in law got and have been growing in his tank ever since. It’s like white dots

They look like nerite snail eggs to me, and your second picture in your original post even shows the nerite snail nearby.

 

[vetteguy53081]

Looks to me like nerite snail eggs. Do you have snails in tank ?

 

[JGT]

Snail eggs. Nerite most likely. Look like sesame seeds.

 

[Jordan92595]

Snail eggs. Nerite most likely. Look like sesame seeds.

Is it good or bad lol too many in a tank ?

 

[JGT]

Neither. Some may hatch but most won’t. Your fish will also eat them when they do find them.