Learn how to calibrate and use the Milwaukee seawater refractometer for quick, easy, and accurate salinity measurements.Read moreIn the early days of the hobby, we’d use a floating glass hydrometer to measure the specific gravity in our tanks and when mixing up saltwater. The strength of the seawater determines how high...Read morehttps://goo.gl/nLcsnz Keeping an accurate salinity level in your saltwater aquarium or reef tank is crucial to the health and well-being of fish, coral and invertebrate. Today we are going to...Read more
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