1. Mar 27, 2013 #1
   Cedar Rapids, IA

   Roman Experienced Reefkeeper

   1,277

   Cedar Rapids, IA

   Ratings:

   +321 / 3 / -0

   
   I am looking to see if anyone has any 4.0 ph calibration solution in Cedar Rapids. I already have 10.0 and 7.0 . Ph monitor I bought requires the use of 4.0 and 7.0.thanks
   

    
2. Mar 27, 2013 #2
   Cedar Rapids, IA

   blackx-runner Administrator Website Team Leadership Team

   6,044

   Cedar Rapids, IA

   Ratings:

   +738 / 5 / -0

   for a calcium reactor i assume?
   I've got one I could spare if you need it right away.

    
3. Mar 27, 2013 #3
   Cedar Rapids, IA

   Roman Experienced Reefkeeper

   1,277

   Cedar Rapids, IA

   Ratings:

   +321 / 3 / -0

   Thanks David

    

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