Ulva lactuca Care Questions

[Struggler]

Hello everyone! So, there seems to be a shortage of Chaeto on Algae barn, and I'm not willing to buy side of the street chaeto. It recommends Ulva lactuca, and some other reefers have as well. However, I cant seem to find any clear care info. Some say it needs cold water. Some say it needs warm. Some say it needs to tumble. Some say it needs to be tied to a rock. I want to use this for my refuge so some help would be really appreciated!

 

[Tahoe61]

http://www.thereeftank.com/forums/f6/macroalgae-and-display-refugiums-221331.html
http://www.reefcentral.com/forums/showthread.php?t=1485932

It appears to need higher nutrients.