Can someone identify this algae for me?

[Maximus]

If someone can identify this algae, I would really appreciate it. Requirements for making it flourish would be a bonus. Thank you.

 

[szwab]

looks like Scinaia complanata

not sure on care though. I had some a while back seemed to like moderate light, lower flow. Make sure it stays under water or those spots ethat were exposed to air for extended time seemed to die off

 

[bluenassarius]

it looks like gracilaria salicornia imo. a buddy of mines went to hawaii and saw a bunch of the same stuff there.

http://www.hawaii.edu/reefalgae/invasive_algae/rhodo/gracilaria_salicornia.htm

 

[ClamIAm]

Do you know where it came from? This may help in IDing it. Unfortunately when you get something from a pet store no one ever knows where it came from