We ask that you do not think of your saltwater aquarium as a fish only saltwater tank, reef only saltwater tank or as a saltwater reef tank with fish. Think of your aquarium as a saltwater aquarium, period. In nature the marine animals all come from a well balanced system. This is how we maintain our saltwater aquarium water chemistry values with great success. Magnesium Values: 1250 - 1350 mg/L, Calcium Values: 380 - 420 ppm, Alkalinity Values: 3 - 5 meg/L or 8 - 11 dKH, pH Values: 8.1 - 8.4, Borate Values: 1.0 – 2.0 meg/L, Salinity Values:  1.026 SG or 35 PPT, Iodide Values: 0.03 – 0.06 ppm, Strontium Values: 10 and 15 mg/L. By keeping the above values stable and constant, using R/O DI filtered water, along with proper water changes, using a good protein skimmer, using carbon in a reactor, using  25 micron filtering bags and proper lighting for your corals. You will have a well balanced saltwater tank and you'll be able to grow and maintain good coralline growth and house any animal from the world’s reef systems and have them flourish. Try this method for 2 months and you will see a difference!  Pass It On!