puntific Posted November 6, 2009 Share Posted November 6, 2009 So I mixed up a batch of Crystal Sea Marine Mix Salt. Specific gravity: 1.025 using a refractometer dKH = 2.97 so far so good Ca = <300 I was going to fast... but <300! Mg = 720! (learned my lesson and went drop by drop This is terrible! (or am I wrong?) I've been dosing my tank with Kalkwasser and also adding Epsom salts to boost Mg. Then I bought the refractometer and discovered the specific gravity: Tank stats: Specific gravity: 1.028! Whoops. glad to know. Helps to have a real tool. did water change to slowly work it down. After change: dKH = 2.63 CA = 360 Mg = 1260 So it looks like when I do a water change, i put in new water without enough CA and Mg. Then I correct with Epsom salts and CaCl2 and Kalkwasser (depending on dKH) and my specific gravity goes though the roof. Sooooooo...... What water do you use? Time for me to switch? puntific Quote Link to comment Share on other sites More sharing options...
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