i have perc, angel, scooter bleeny, watcherman goby, different corals i have mushrooms, zoos, hammer, torch. Hermit crabs and snails. I run my light about 9 hours a day have been for almost a year and now of course i am having a algae problem. I run a 250 watt bulb my tank runs at 79 to 80 degrees all the time. Do i just need to black out my tank for couple of days and just let the algae die or is there a better way?