Too much algae?

[kevinpaz]

I've attached some pics of this green "carpet" type algae that's growing like mad in our tank. It's a reef tank with no fish, an anenome, an arrow crab, some mushrooms, a few snails, and a small starfish.

At first it was only covering the glass and powerheads, but now it's starting to carpet the live rock. should i be getting rid of this stuff, or only if it bothers me esthetically?