tbrown
Cronies #3?? Heathens' Coffee Snob???
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I get the same on occasion. Pretty sure it's some form of cyano or an algae of some type.Seems like the turf algea is making a ton of bubbles?
Also I have these silencers that stop surface water flowing down.
Anything that commonly causes it? It is reddish so maybe cyano but I haven't seen it coat any rocks


