My tank only consume Kh

[Yellawait]

Its that normal that i only need to dose kh? My calcium/ magnesium seems stable..

 

[Court_Appointed_Hypeman]

Is it a new tank?

My calc didn't start measurably dropping until about 2 months into no water changes.

 

[Yellawait]

About to have 2 years old.

 

[Randy Holmes-Farley Verified Community Expert]

How much alk (in dKH per day) are you dosing?

 

[Yellawait]

How much alk (in dKH per day) are you dosing?

25ml in 440L = 0,14dKH par day everage

 

[Yellawait]

How much alk (in dKH per day) are you dosing?

Im using aquaforest buffer in powder and i mix it myself

 

[Randy Holmes-Farley Verified Community Expert]

That is a very low demand, and you will not be able to detect that balanced calcium change (~ 1 ppm per day) unless you track it for weeks.

I suggest dosing both parts equally every day to get in the habit of it, but if you wait a week or two and then dose all of the calcium part that is needed (which may well be close to what you would have dosed every day, all added up), that too is fine.

 

[Yellawait]

That is a very low demand, and you will not be able to detect that balanced calcium change (~ 1 ppm per day) unless you track it for weeks.

I suggest dosing both parts equally every day to get in the habit of it, but if you wait a week or two and then dose all of the calcium part that is needed (which may well be close to what you would have dosed every day, all added up), that too is fine.

to be sure that I understand correctly, I must add 0.14 of calcium per day? will this help to maintain a better ph and to know that I use this product here I added an image

 

[Randy Holmes-Farley Verified Community Expert]

to be sure that I understand correctly, I must add 0.14 of calcium per day? will this help to maintain a better ph and to know that I use this product here I added an image

I mistakenly assumed you were using the Aquafiorest two part. This one:

https://aquaforest.eu/en/product/component-123/
I recommend switching to that (or some other quality brand or DIY two/three part system) once you finish the materials you have. Two part systems are a better way to maintain a reef tank than independent alk and calcium additives.

Since you are not using a two part, it is OK to hold off on adding calcium until you detect a need, which may take a while in a very low demand tank like yours. :)

Adding calcium will not impact pH.

 

[nereefpat]

Do you do any water changes?

Magnesium, and sometimes Ca, can be covered by small weekly water changes in low-demand tanks.

 

[Yellawait]

Do you do any water changes?

Magnesium, and sometimes Ca, can be covered by small weekly water changes in low-demand tanks.

Yes i do, weekly 20% waterchange