magnesium

Wow, it was right on their page the whole time. I wonder if you've ever purchased the two part solution. You'd have noticed that their bag of MAG mix includes the 50/50 mix, rather than pure mag chloride.

Randy Holmes Farley reports that he's not 100% sure that accumulation of sulfates is detrimental to a reef tank, but I've been using epsom salts since day one (after the mag mix from BRS has run out).

Thanks! Now I know where to get pure Mag. Chloride from.

 

Yeah. I don't know about the sulfate thing either. From what I've read as long as you do an occasional water change the sulfate will be mitigated. Not a big deal I don't think.
I have just been using epsom salt from walgreens lately cuz it's only $2. I like that mag chloride cuz it dissolves fast and clear but, it's significantly more $$$$.

 

O.k. to further the debate (just for kicks and giggles) Calc and Mag are made up of molecules and not molecules themselves.

Calcium is a metallic chemical element which appears in great abundance in numerous compounds in the Earth's crust. Calcium is one of the most abundant minerals on Earth, in fact, and it is also a vital component of many living organisms, making calcium very important element of healthy nutrition. Dietary calcium can be found in a number of foods, and also in the form of vitamin and mineral supplements, for people who are at risk of calcium deficiency. In addition to being important for healthy bodies, calcium also has a wide range of industrial uses, both in pure form and in a number of compounds.

 

That isn't exactly true either.

Calcium atoms are just calcium atoms; pure calcium is made up of calcium atoms. As Magnesium atoms are just Magnesium atoms. In other words, pure elements. You can break it down to just one atom and it would still be Calcium.

Still, Calcium Chloride and Magnesium Chloride and Magnesium Sulfate (what we are actually putting in our tanks) are molecules. That is, they are the combination of more than one atom. If you break it down into individual atoms, you no longer have Calcium Chloride but Calcium and Chloride.


To extend that out, the Ca/Mg combo supplements are keeping the ratio's of these molecules (presumably), as they are bottles of Ca Chloride and Mg Chloride, et al.. not bottles of pure Ca and Mg atoms.

To the point of apples and oranges - H20 is no more a molecule than a molecule of Calcium Chloride fits the definition.

The earlier comparison was using molecule to molecule comparisons. That was my only point.

Though, it was still a jest and I'm not trying to make a point of any sort on the ability of a bottle to maintain any ratio whatsoever.

 

This is good stuff, but I bet JJK is more confused now then ever... lol