leave/lettuce macro ID (pic included)

[slave-of-rock]

i got this macro from my LFS for $5 a few days ago (not just this leaf, but a huge huge huge baggy full, filled my 20g sump up half way) and i have no clue what it could be, ive seen it in there sumps, and then i asked 2 buy it and thats what they gave me, any ideas what it is? heres a pic:

thanks
-kyle kaz

 

[RicksReefs]

Ulva. great stuff. tangs & other herbivores love it.

 

[slave-of-rock]

thanks! i got tons of it now, at least doubled in size

 

[deepbluesea99]

the trade name is sea letuce haha excuse the spelling i dont even like the stuff on my burger but it makes a fine fuge alge i have that chedo and gracilaria in mine none ever go sexual and foul the tank good luck nice portrait kinda a hipster doofis thing goin on there lol

 

[slave-of-rock]

thats kramer man!!! i have a light on the tank 24/7, always there so it sont go sexual hopefullys

 

[RicksReefs]

while most any algae can go sexual, ulva is one tough
plant. it can get exposed at low tide, be baked by the sun,
& still be fine when the tide comes in. i've never had a
problem with it