Excess Algae Growth

[HovikLoans]

We have a 225 gallon reef tank with a 75 gallon sump. All seems to be going well with the coral and fish in the tank with ample coralline algae throughout. We've been getting these ugly brown algae growing in three patches and the Tang does not seem to have an appetite for it. Any suggestions on how to get rid of this stuff without tearing it out or treating with chemicals? Photo of the algae attached.

 

[HovikLoans]

Now we have a bunch of silver ball bearing looking structures behind the algae. Initially, we thought they were eggs. any ideas as to what these might be and how to get rid of them?