- Joined
- Aug 17, 2014
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I recently upgraded my tank about 2 months ago which I used all my old rock, roughly 20lbs and about 30lbs of dry base rock. I have been testing Mg, Alk, Ca almost daily with salifert test kits to find out consumption so I can set up my dosers. While testing, I was getting a huge difference in daily numbers. I was obviously confused, thought it was my test kits so I went got new one, same thing. Well this morning, I originally tested from the return area of my sump which is pretty low flow bc I have a refugium, getting low readings on all 3. Mg=1125/alk 5.2/Ca 275. Knowing this cant be I decided to test from the display and then got these numbers Mg=1515/alk 8.1/Ca 415. I then tested 3 more times from the display and got roughly the same numbers. Can someone explain to me why such a large difference in readings? Is it all do to flow?