Magnesium dosing question.

[71xlch]

I am using Randy's 2 part recipe #2. Looking for info on what ratio of MG I should be dosing. Say I'm adding 30ml daily, how much MG should I add. I was thinking around 5ml. I could be way off.

 

[JimWelsh]

Recipe #2 requires 305 mL of either Mg Part 3 for every gallon (3785 mL) of Parts 1 and 2 added, so the ratio is 305 / 3785 = 0.08 = 8%. For 30 mL of Part 1 plus 30 mL of Part 2 daily, then it would be 30 * 0.08 = 2.4 mL daily of Part 3.

 

[redfishbluefish]

On paper, you've got the answer above. However, in practice it requires testing and adding what your tank needs.....especially with magnesium.....taking into account the brand of salt you are using. I also use Randy's recipes and add very little magnesium, because I'm getting it in the salt I use, and the frequent water changes. So test first to determine what you need to dose.

 

[71xlch]

Recipe #2 requires 305 mL of either Mg Part 3 for every gallon (3785 mL) of Parts 1 and 2 added, so the ratio is 305 / 3785 = 0.08 = 8%. For 30 mL of Part 1 plus 30 mL of Part 2 daily, then it would be 30 * 0.08 = 2.4 mL daily of Part 3.

Awesome thanks.