What's the time frame of this time lapse?
about 7 hours I think
http://en.wikipedia.org/wiki/File:Marimo_lake_akann.jpgGrew one of these for a while. Strangely satisfying.
that looks really cool, now I have algae envy
You can pick one up on eBay or at some pet shops. There are fakes (wadded burlap with regular algae) but a real marimo actually leaves the water clear and it just keeps growing as a ball. You have to remember to rotate it but - how cool is that? "Excuse a sec, I need to roll my alga over."It finally died an ignominious death when someone spilled its home out.