Here is a question that has been bothering me for quite awhile.....
Why does ghl produce 50ms calibration solution and not 53ms? Are some people keeping reef tanks at 50ms? I do not know of any other companies doing this and I do not understand how it is beneficial.....a 53ms solution would help me more because then I could put the probe into it and see if it reads what I keep my tank at which is 53ms or very close to it. For this reason, I do not use the ghl solution..... I prefer using 53ms like every other person I know in North America....


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