I had a little java and an unidentified moss in that tank.
I got the unidentified moss from Manini; and he thinks it's spikey moss, but is unsure. It's a really nice moss. I suppose I should get some pictures of it some time.
Also, I note that while it didn't affect the Marimo ball (clado algae)...it absolutely nuked the hair algae. All the hair algae was dead within a day.