Is This A Type Of Caleurpa?

[MikeB]

 

[yveterinarian]

It looks more like Halimeda Opuntia to me. Here's a link if you like http://www.google.ca/url?sa=i&rct=j...4QsUgzu3dlWuNeKb7QmP42qA&ust=1407853325828819

 

[heath]

I've had that before, my fish loved it...

 

[MikeB]

Thanks Yveterinarian.