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  1. General Reef Discussion
    My tanks has been set up for about a month, 75 gl about 75lbs rock ( 50 base 25 live) I have two dead shrimp floating on a pcs of foam, Yesterday I tested ph = good amonia = 0 pts nitrate= 0 nitrite=0 my rock show signs of brownish velveties growth some release small air bubbles what is...
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