KH problem low KH but High PH

[tanvirfaeque]

My tank 1 year old 75 gallon trying to have coral soon but my KH very low , started dosing reef carbonate from seachem 75 ml everyday for last 5 days but still my KH is 4dhk. Don't know what consume my KH that fast . I Use tap water which have KH and PH around 9 DHK but every time i add water to my tank and mesure PH stays same but KH deplet within 24 hrs . Need Advice thanks

Nitrate 20
Phosphate 0
Nitrite 0
Calcium 410
Mg 1350

Have 6 fish clown ,dottyback and 4 damsels
Sand argonite 2 inch
40 lb rock

 

[Randy Holmes-Farley Verified Community Expert]

I’m going to remove the emergency tag.

What is the tank pH?

How are you measuring alk?

 

[tanvirfaeque]

PH between 8 and 9

I'm using Api kit

KH is between 40 to 50 / 2.5 to 3 DHK

Thanks

 

[Randy Holmes-Farley Verified Community Expert]

PH between 8 and 9

I'm using Api kit

KH is between 40 to 50 / 2.5 to 3 DHK

Thanks

The pH is not going to be too high.

I suspect a measurement error on the alk.

Try measuring alk in some new salt water. Preferably not made with tap water.

 

[tanvirfaeque]

Test strip might be a outdated so I ordered new test kit , and mesure it, attached photo. Any idea if it's ideal for adding coral now. Thanks

 

[Randy Holmes-Farley Verified Community Expert]

From that data set, the water likely is similar to the new starting water in alkalinity, and looks fine, but test strips are not the way to go are you move forward.