Neon Algae

I have a quick question, there seems to be a light neon coating of algae all over my live rock, its not hair or slime, it just looks like the rocks are turning neon green, anybody know what it could be?

 

I had some lime green color coraline algae grow in my tank before the purple started. I was told if you cant rub it off or pull it off then it is probably coraline. A pic would help tho.

 

Here are some pics of what Im talking about

 

Does it come off when you rub it?

 

I havent tried, rub it with my hand or a brush or what???

 

Leave it alone, it's just a stage it will pass, must be a fairly new tank right? it will change to a brownish red color in a few weeks. Don't worry, its a good thing. If your running your lights you might want to back down on the amount of time just a bit.

 

yeah, its pretty new

 

yeah! it is pretty normal, try using a small brush and see if it comes off, if it don't then is coralline, is known to be bright green and also light in color

 

yeah I just brushed it and it isnt coming off

 

Then it sounds like a green coraline.