Guest chris345 Posted January 2, 2007 Share Posted January 2, 2007 i tried to level out my sand to be equal in my saltwater tank but suddenly i noticed that my hydrometer arrow was not moving.(it usally moves up and down) Link to comment Share on other sites More sharing options...
Regular Member Reef Man Posted January 2, 2007 Regular Member Share Posted January 2, 2007 It is probably just stuck.... take it out and rinse it with fresh water!!! Link to comment Share on other sites More sharing options...
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