Hi Everyone, My 10g tank has dinoflagellates in the tank. It is on the glass, rock, corals, basically every where. I've only been in the hobby since March of last year and learning every day. I initially thought that I had bubble algae and some other kind of algae, until I was told that I had dinoflagellates. I started a blackout of the tank yesterday that I will maintain for 3/4 days to see if that helps. I'm thinking of trying the Fauna Marin Ultra Algae X since I've read good things about it, but its $27.99 at BRS. I was also thinking of breaking down the tank and starting over, since it is only a 10 gallon tank . A lot easier to do versus a much larger tank.