Is this Algae cause for concern?

[Ichthys]

So my Live rock started off pretty clean except for the nice desireable purple coraline. After a week in the tank the rock seems to be getting a dark green almost fuzzy look to it. The Coraline seems to be less vibrant than it was. Lighting and water parameters are all good, i Have enclosed before and after pics so you can see the difference, and a close up of the algae or whatever it is.

Can anyone tell me if there is cause for concern, or is this a normal cycling phase of the rock. Keep in mind that the rock came from an establised 5 year old tank and was only out of water for 2 hours.

 

[Freya]

Looks like normal cycling algae to me. 2 hours is totally enough time for beneficial bacteria to die off, brown green phases here you come!

My boyfriend and I set up a temporary tank with rock from an existing tank that was out of water no more than 5 minutes and it went through all of the nasty algae phases still.

 

[pblutang]

I'm still new to reefing but the same thing happened to my LR. Must be part of cycling.
There's a lot of experienced folks on here that will probably give you a better answer.

 

[blk822822]

Just cycling

 

[dtd87]

Yeah normal cycling algae lasts a few weeks. Or atleast mine has.

 

[OldFishMan]

Looks fine.

Buy some Grunge --- the rocks will be covered in pretty coraline in no time.

http://saltaquarium.about.com/od/aboutcorallinealgae/ss/coralline.htm

Coraline likes a lot of Magnesium

Enjoy