i have what i think is brown algea on everything in my tank and as soon as i clean it it come right back. been doing this every since i put t5 over my tank. i was told that i can turn my lights out and starve it. is this ture and how long would i have to leave them out.i have live rock 100LBs,tang,cardinal,crabs,and snails.if i did this would everything be ok