I just got ICP test results back today. Both my tanks have high potassium and low iodine (so I suspect the salt as I use the same salt on both tanks). What is the effect of high potassium? Does it affect fish at all?
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Mine is in the 500 range. No issues? How about with fish?Most people recommend running potassium around 400 ppm, some people run it higher (up to 500-ish) since it seems to improve coloration of certain SPS. Some of the salts intentionally mix up with higher than 400 ppm for the same reason.