Please help me. My fish tank is about 1 1/2 months old and the diatom bloom in the tank has lasted about 3 1/2-4 weeks. I do regular water changes, use easy green fertilizer and keep the light on for 12 hours. My water parameters are 0 Ammonia, 0Nitrites, 10ppm Nitrates using the Master API Testing kit. I really have no idea what is going on and I need help.