2 Part Dosing

[hillegom]

I use this recipe from Randy Holmes:

3. Using both Epsom salts and MAG flake, dissolve 7¼ cups MAG flake and ¾ cup Epsom salts in one gallon of water, and use that to supplement magnesium in amounts determined using this linked online calculator, with the entry "Randy's Recipes 1 and 2 Versions A and B," and ignore for this purpose what those designations mean. This recipe is preferred, but its advantage over recipe #2 is minimal in most cases.

Which is derived from:
http://reefkeeping.com/issues/2006-07/rhf/

[reefwars]

which like mindy said is 10yrs old now

[reefwars]

oh and flake is most likely dihydrate fwiw

[Myka]

Originally Posted by reefwars

oh and flake is most likely dihydrate fwiw

Oh ya, that ^ too.

[Wretch]

What is the difference between hexahydrate and dihydrate?

[Myka]

Originally Posted by Wretch

What is the difference between hexahydrate and dihydrate?

4 water molecules. It's how much water is contained within the compound.

[Wretch]

Originally Posted by Myka

4 water molecules. It's how much water is contained within the compound.

Ok so if you need 5 cups of hexahydrate how many cups of dihydrate would be needed?

[gregzz4]

Originally Posted by hillegom

I use this recipe from Randy Holmes:

3. Using both Epsom salts and MAG flake, dissolve 7¼ cups MAG flake and ¾ cup Epsom salts in one gallon of water

Deitmar, why are you using the recipe #1 Part 3B measurements ?
I use the Part 3A dosing with 5 cups and 3 cups

An Improved Do-it-Yourself Two-Part
Calcium and Alkalinity Supplement System

[hillegom]

I don't know Greg, I have been using that for a long time. Whats wrong with that recipe?

[hillegom]

ok, I looked up #1 3B
Thats not what I am using, that one is all epsom salts. (mag sulphate)
I use 7.25 cups mag chloride to .75 cups mag sulphate to one US gal.