Jan 7, 2012 #1 J19Reynolds Aquarium Advice FINatic Joined Jan 5, 2012 Messages 612 Location Joshua, Tx What are these and what are they for
Jan 7, 2012 #2 mfdrookie516 Aquarium Free - 2+ Years Joined Jul 23, 2009 Messages 19,407 Location Orange Beach, Alabama Those are hydrometers, for measuring specific gravity. Not all that accurate, when compared to a refractometer.
Those are hydrometers, for measuring specific gravity. Not all that accurate, when compared to a refractometer.
Jan 7, 2012 #3 OP OP J19Reynolds Aquarium Advice FINatic Joined Jan 5, 2012 Messages 612 Location Joshua, Tx What's tht? And y do u have to have it?
Jan 7, 2012 #4 mfdrookie516 Aquarium Free - 2+ Years Joined Jul 23, 2009 Messages 19,407 Location Orange Beach, Alabama hydrometer