Dec 9, 2018 #1 sensei Active Member View Badges Joined Jan 11, 2016 Messages 249 Reaction score 92 Rating - 0% 0 0 0 I think this are Dinos?? do they affect fish in dt?? Thanks
Dec 9, 2018 #2 HotRocks Fish Fanatic! View Badges Staff member Super Moderator Excellence Award Reef Tank 365 Expert Contributor Article Contributor INDMAS Member My Tank Thread Joined Oct 5, 2017 Messages 8,636 Reaction score 27,923 Location Westfield, Indiana What state or country do you live in Indiana Rating - 0% 0 0 0 I'm no algae expert. It does look like Dino's. They can be toxic to fish if ingested.