ID Algae plz

[ferret]

This algae looks like Chlorodesmis caespitosa or Cladophora prolifera to me. Both of them can easily spread all over on your live rocks when your nutrient level is high or under the right growing condition. This is not considered to be a pest algae when compared with the red turf algae and will not go sexual like the Caulerpa sp. but will be difficult to get rid of when you dislike it for snails, sea hare, urchins, fish like tangs, rabbits, angels ( most likely all of them will ignore it ) however I had seen the adult sized blue angel had consumed this algae before.