An aquatic environment water parameter testing system and related methods and chemical indicator elements. The aquatic environment water parameter testing system includes an electronics portion having an optical reader element and a sample chamber portion. Conductivity and/or temperature may be utilized to calibrate readings by the optical reader element. A system may optionally have a sample chamber portion having a chemical indicator element which may be removably connected. A chemical indicator element may include an information storage and communication element used, in part, to provide identification of a chemical indicator of the chemical indicator element.
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