Dosing help please

[Biznizface]

So I've bought my first doser and am eager to get it going.

Have got sodium carbonate for kh, Calcium Chloride and Magnesium Chloride.

Have tried using various online calculators and think I know the maths to make the solutions. Reading around I think it's best to make the kh solution weak for many reasons so am going to make 5 litre with 75g per litre.

I have 80 litres tank volume.

My KH drops from 8 to 7.5 approx 0.5 a day.

Calcium drops from 420 to 410.

Mag from 1350 to 1330.

Please can someone give me the maths to make mag and calc solutions.

I found KH is 100g to a litre but can't find mag and calc ?

Also no idea how to work out what I must dose a day to keep parameters stated.

Please help thanks Nathan.

 

[Reeferdood]

I think BRS has a calculator on their website..
Try this link....
http://www.bulkreefsupply.com/reef-calculator

 

[Biznizface]

Have tried calculators but they don't give dosage only one time amount to add

 

[Reeferdood]

Wouldn't that be the daily dosage amount since you know your tanks consumption rate?

 

[Biznizface]

Yes as stated in original post I know daily consumption

 

[Reeferdood]

Try to see if Randy can help you with this one, he is the chemical genius in the reefing world!
:D

 

[G8trBait16]

I would start off with adding 20ml a day on all 3. Then test again, if you are still taking up more than you are putting in add 10ml to the 20 for 30ml and so on. I had to do the same thing with the Aquaforest balling method I am doing with my first Doser. Have only had the Bubble Magus doser for 1.5 months and already up from 50ml a day to 100ml a day. What I love is the doser can put the equal amount every hour for 24 hours. Has definitely made my life a lot easier.

 

[Biznizface]

Yes I am eager to get going just a bit scared lol because my tank is sweet at moment but having a long holiday soon so need to set up doser.

So did you make 5 litres of each solution could you give me ratios ?

I know it's 100g per litre for bicarbonate

 

[G8trBait16]

I use the Component 1+,2+,3+. So everything is already mixed and in 5L jugs. I use 1.5L in my dosing containers and it lasts for a little over 2 weeks. When I start using a lot more then I will start mixing my own, since I heard it is cheaper.

 

[Biznizface]

Yeah I looked into liquid products but as most of the bottles of ready made liquids need shaking I didn't think that would work and also much more expensive than 'balling tight'

I have food grade sodium carbonate and Royal Nature branded mag and calc powder