I have a 35 gal red sea salt tank w/4 small-med. live rocks.I waited 2 mths before adding any fish. I now have 3 damsels, 3 maroon clowns & 2 cleaner shrimp. I waited 2 wks between adding ea.group. My water has always been hard (1100 ppm),ph is 8.3-8.4(perfect), nitrate & nitrite were both @...