This page contains some images of brown algae + some other things concerning aquariums. It is not at all related to Slimy Green Stuff BV but gives a visual impression of the appearance of brown algae that are harvested for the production of sodium alginate, one of the many bio-based polymers we are interested in.
Source: Coldwater marine aquarium Blog 2008 June (opens in new tab)
Coldwater marine aquarium Blog 2008 June