Help identify

[mhstein34]

After may years, I re-entered the hobby. This is the first time I am starting a new tank with dry rock. It has been up about 6 weeks and I turned the lights on about a week ago. Please help identifying this as I need a strategy to defeat.

 

[shakacuz]

dino's, i believe.

 

[mhstein34]

dino's, i believe.

40 gallon breeder. No corals. 2 clownfish and a few hermits and snails. Everyone seems happy and healthy. Any recommendations on eradication?

 

[DedElvis]

40 gallon breeder. No corals. 2 clownfish and a few hermits and snails. Everyone seems happy and healthy. Any recommendations on eradication?

New again myself. If I'm not mistaken this will pretty much go away on it's own in a week or two. I'll let the pro's chime in, but mine went away almost like magic during my cycle.