Randy, any recommendations on what tests and procedures would be suitable for doing a more thorough investigation of this salt?
I guess the biggies or those that might cause an issue if off by much: chloride, sulfate, potassium, bromide, lithium, strontium, fluoride, borate, etc.
What is seawater
http://reefkeeping.com/issues/2005-11/rhf/index.php