before buying a case of the reef crystals myself, i e-mailed instant ocean requesting a guaranteed analysis of IO vs Reef crystals. they couldnt send me the analysis of --, but heres the analysis of regular IO and a copy and pasted e-mail from IO regarding the --...
Typical Composition of Instant Ocean Salt
Solution at Approximate Salinity of 35ppt
Ionic Solution 32ppt, if the salt is dissolved as per our directions on the package.
IonInstant Ocean Seawater*
(ppm)(ppm)
Chloride19,29019,353
Sodium10,78010,781
Sulfate2,6602,712
Magnesium1,3201,284
Potassium420399
Calcium400412
Carbonate/bicarbonate200126
Bromide5667
Strontium8.87.9
Boron5.64.5
Fluoride1.01.28
Lithium0.30.173
Iodide0.240.06
Bariumless than 0.040.014
Ironless than 0.04less than 0.001
Manganeseless than 0.025less than 0.001
Chromiumless than 0.015less than 0.001
Cobaltless than 0.015less than 0.001
Copperless than 0.015less than 0.001
Nickelless than 0.015less than 0.001
Seleniumless than 0.015less than 0.001
Vanadiumless than 0.015 less than 0.002
Zincless than 0.015less than 0.001
Molybdenumless than 0.010.01
Aluminumless than 0.006less than 0.001
Leadless than 0.005less than 0.001
Arsenicless than 0.0040.002
Cadmiumless than 0.002less than 0.001
NitrateNone1.8
PhosphateNone0.2
* Data for seawater values taken from An Introduction to the Chemistry of the Sea. 1998. M.E.Q. Pilson
Hello,
Instant Ocean is formulated to duplicate natural seawater with respect to major, minor and trace element composition. Reef Crystals sea salt was formulated to have an elevated calcium level which can be beneficial for the growth of certain coral species as well as desirable calcareous algae. Calcium in Reef Crystals is elevated by ~14% over natural seawater level.
Aside from having an elevated calcium level Reef Crystals also has elevated levels of selected trace elements. Most are elements that are not often heard about but all have proven benefit to the symbiotic algae that live within the tissue of photosynthetic corals. Reef Crystals also has several different kinds of vitamins added which have also shown to be beneficial to corals.
While we cannot disclose the exact percentage by which these trace elements are elevated. We can, however say which elements are elevated. Below is a list of these elements (excluding calcium). These are some of the same elements that are present in various "Trace element" additives available on the market.
Iron
Manganese
Zinc
Molybdenum
Cobalt
Vanadium
Selenium
Sincerely,
UPG Aquatics