I have a small reef that is well established and I have had alot of success with it so far. No bells and whistles just a straight forward set up with a hang on filter. In over a year of being stocked nothing has been lost nor have I had any blooms of any sort till now. RED ALGAE!! What the heck is it and how do I get rid of it. The tank is a 18g high with a penguin 330 hang on filter, 60 watt pc, and the temp is always 78 degrees. Any help or suggestions would be awesome.