Originally Posted by sub-80
No there is no bad smell. At first I mistook it for staghorn algae but after a bit more research I believe it Green hair algae, it sure feels like wet hair when you touch it.
The only way to know if it's hair algae is to fashion a mustache from it then go out in public wearing said mustache.
Not a bad business proposal, hair algae facial hair probably more hygienic than having other people hair on your face or head.