STAY AWAY FROM TAP WATER. I LEARNED THIS AFTER BATTILING HAIR AND RED SLME ALGAE WHEN I FIRST STARTED MY REEF. CUT BACK A COUPLE HOURS OF LIGHT FOR A WHILE. MAKE SURE YOU ARE CIRCULATING YOUR TANK HIGH AND LOW. YOU WROTE YOUR CALCIUM READING, IS YOUR ALK. AND PH GOOD? AND DO SMALLER MORE...