da Plantbrain said: > Well, I finally found a BGA that has heterocyst and can fixed N2! > Scytonema bohneri. > > It looks like little brown fuzzy balls attached. An interesting find and the > first heterocyst I've found to date looking at Aquarium algae. Sigh! What a dubious distinction. Do I win a prize for this? - da knucklehead -- Shireen Gonzaga Baltimore, MD