Raising dKH

So, from the start of my tank my readings were:

dKH 7
Ph- 8.4
Ca- 450
PH 8.4
Mg 1280.

Today I used the dKH calculator for dosing with baking soda and it said to use 3 tbs for 45 gallons of water to raise to 10 dKh. I did mix the baking soda with R/O water. I only had 2 tbs of baking soda and I used 3/4 of it so far and it raised my water to:

dKh- 10
Ph- 8
Ca- 400
Mg- ???

Is this okay?

Why did a smaller dose raise my dKh so high?

Thanks.

Casey

 

How long did you wait between dosing and testing?

 

give it 24 hours..

 

I'd say wait at least a couple hours.

 

I mixed 2 tbs into 2 cups of water and i poured about 1/2 cup every 4 hours. The last time I dosed was about 3 hours ago and took the reading from my sump.

 

did u bake the baking soda?

 

No. The calculator had both baking and no baking. I went with no baking because I didn't much effect on my Ph but as you can tell that didn't happen.

Should I have baked? Why?

 

if u bake it will affect ph, if ph is good then dnt bake, un baked can even lower ph

 

But I did not bake and it still dropped my Ph from 8.4 to 8

Is that normal?

 

yes for unbaked soda, baked raises ph