Dinos? Diatoms??

[reefnewb70]

This is the bottom of our new tank, cycled 5 months. Also on rock. Thoughts?

 

[Cichlid23]

Very common for new tanks to get this brown algae on the sand bed. Looks like those are just bubbles from photosynthesis of the algae. Whole bunch of ways to remove it but technically it does go away as the tank matures.

 

[ovicez2004]

Wait it out. Will desapier. I made some manual removing as well. It helps. It isn't dyno.

 

[EeyoreIsMySpiritAnimal]

Absolutely not an emergency.