Greetings all! I humbly admit I've had my run in with the extended algae family, but this one has me beat. At first I thought it was staghorn, but it's branching habit appears different and I have never heard of staghorn having black spores/seed pods....Which makes me think it is not even an algae at all. It grows prolifically in my high tech and my low tech. It DOES NOT respond to localized excel, blackouts or erythromycin. It does not turn red in alchohol. It seems to propagate via fragmentation and these black seedpods. It grows mostly wrapped around plants close to the light source, but hangs on even if far from the light.