Switching from Red Sea Liquid to Powder - need some help

[98dak83cam]

I'm switching over from Red Sea liquid A, B and C to the powdered version. I was able to use the online calculators to dose the liquid version just fine. Now my question is - when I mix a "stock solution" as Red Sea calls it, how do I know how much of that to dose? All the calculators are ml for liquid and grams for powder. I'm just trying to figure out how many ml of stock solution to add do give me a given increase in dKH. I see in my Red Sea directions is says 1ml/100 liters = .034dKH. Is there an online calculator that makes this a little easier? ( not to sound lazy!)

Thanks

 

[98dak83cam]

I did find this - http://reef.diesyst.com/chemcalc/chemcalc.html

For example I used 250 gallons as the total volume, current dKH of 7, desired dKH of 8. I used red sea foundation b powder in the drop down and it did give me an option in volume of .9 oz which converts to about 27 ml. Does that sound about right? Thanks again for answering these rookie questions.

 

[Randy Holmes-Farley Verified Community Expert]

Yes, the weight is correct. How are you getting 27 mL? 6.1 teaspoons is about 30 mL.

 

[98dak83cam]

Yes, the weight is correct. How are you getting 27 mL? 6.1 teaspoons is about 30 mL.

I converted .9 oz to ml which gives me 26.61617671875

I did just now convert 6.1 tsp to ml and got your 30 ml.

Oh boy lol, which one is right? Take the average?

 

[Randy Holmes-Farley Verified Community Expert]

I converted .9 oz to ml which gives me 26.61617671875

I did just now convert 6.1 tsp to ml and got your 30 ml.

Oh boy lol, which one is right? Take the average?

Teaspoon is a measure of volume. The ounces is a measure of mass, which does not always equate with volume the way you did. It only works that way for water or other things with a density of 1 g/mL. There's no reason to think this material has that.

 

[98dak83cam]

Teaspoon is a measure of volume. The ounces is a measure of mass, which does not always equate with volume the way you did. It only works that way for water or other things with a density of 1 g/mL. There's no reason to think this material has that.

Teaspoons it is, thank you for the clarification!

 

[Randy Holmes-Farley Verified Community Expert]

You're welcome.

Happy Reefing.

 

[M0N0x1]

I just mixed my first powders today but I cant get the the C magnesium to mix completely. All the powder separates and settles at the bottom. Has a tone had this issue or know what I did wrong. I followed the mix instructions for stock mix..
Thanks