Hamstar99 Posted January 4, 2012 Report Share Posted January 4, 2012 in short i have never been able to get a reading with my Gh test no matter what i try. I can never get the sample to change from "orange" to green. I have tried testing tap water, tank water, rain water, smaller samples all to no avail. Has anyone else ever had this issue?? and is it just a simple case of having a dud solution. Cheers in advance. Quote Link to comment Share on other sites More sharing options...
Li@m Posted January 4, 2012 Report Share Posted January 4, 2012 Are you looking through the test tube, or from the top and down into the water? Also when did you buy the test and what brand /type is it? Quote Link to comment Share on other sites More sharing options...
Hamstar99 Posted January 4, 2012 Author Report Share Posted January 4, 2012 Its an API kit i probably about 3 months since i bought this one. I usually look through the side. The colour change should be pretty obvious i would think. Well it is when test Carbonate hardness. Quote Link to comment Share on other sites More sharing options...
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