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09/20/2012, 05:22 PM
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#1 |
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Registered Member
Join Date: Feb 2012
Posts: 381
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Water Testing
Once a month I do a complete water test. So my question is, knowing the balance of Alk, Ca and Mag - is it safe to just test Alk (hanna checker so easy) and if that remains stable all 3 will be in check?
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09/20/2012, 06:20 PM
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#2 |
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ReefKeeping Mag staff
  
Join Date: Apr 2006
Location: West Seneca NY
Posts: 27,691
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No. They may vary for a lot of reasons.. I, personally test alk every 3 days or so, calcium every two to three weeks and mag once every two months.
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Tom Current Tank Info: Tank of the Month , November 2011 : 600gal integrated system: 3 display tanks (120 g, 90g, 89g),several frag/grow out tanks, macroalgae refugia, cryptic zones. 40+ fish, seahorses, sps,lps,leathers, zoanthidae and non photosynthetic corals. |
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09/20/2012, 10:28 PM
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#3 |
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RC Mod
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
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I tested alkalinity once a week, and magnesium and calcium once every month or two, but that was after my tanks had been stable for a couple of years. The frequency of testing will depend on how much change is going on in the system. Calcium testing might need to be done a bit more frequently than you'd expect because of issues with the consistency of salt mixes.
 I have zero data on how common that problem is, though.
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Jonathan Bertoni |
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