I will admit that I find tables 4 and 5 very interesting, however there is a very important detail that some might over look in those tables.
"The data for Instant Ocean and Coralife salts are from Atkinson and Bingman, 1999. The data for Marinemixâ€“Bioassay Formula were provided by the manufacturer. The data for Bio-Sea Marinemix are the average of two samples in the advertising literature from the manufacturer.."
The fact that IO and Coralife (two brands that most on this forum will say they had great luck with over the long haul) is pretty much hammered in the data present and the other two are astoundingly better make me very weary of the validity of this information based on the quotes provided above. The fact that Coralife and IO are the only two objectively analyzed is reason for concern. I have no doubt that had all three mixes been analyzed objectively from a 3rd party you would see some drastic differences in those numbers for Bioassay and Bio-Sea. Thats just MHO regarding lots of experience dealing with the manufactures claims vs. the actual. However, great article and kudos to you!
Here's to swimmin with bowlegged women.
Reef with 30G Sump/Fuge Combo
-30G LTAnemonarium with mated porcelain crabs, 10 sexy shrimp, and 2 pink skunks all tied into the other 135G in my system.