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coral ok

  1. General Reef Discussion
    75 gallon salt tank, 1 1/2 years old. Never any problems with water parameters except for more algae on live rock than I would like. (0 phoshate, 0 nitrate - blaming too many hours of light and bulbs over 6 months old). 2 weeks ago, I added a three urchins to start eating algae. Ordered some...