not sure what this is

[Tx Medic]

This stuff has been popping up everywhere I just upgraded to this 75g from a 29g about 8 weeks ago its not hard and scrapes off easily with a finger nail. it doesn't grow on the glass at all.

 

[evolved]

The bigger round ovals are nerite eggs, the smaller guys are spinoid worms.

 

[Tx Medic]

Nertrite eggs ah didn't think about that, I thought they didn't reproduce in a tank

 

[evolved]

They'll lay eggs, but the eggs won't hatch.

 

[Tx Medic]

Dang they lay allot of eggs