Kalkwasser for nano aquarium

[entist]

Hi. I have 15 gallon reef tank with some LPS and 2 fish. How can I add kalkwasser (Kent mix) if my parameters like this:-
Ph 7.8
Kh 8
Ca 400
(N.B in 1 month kh drop from 12 to 8 & Ca from 440 to 400)
Thanks

 

[Randy Holmes-Farley Verified Community Expert]

Do you know how much water you evaporate each day?

 

[entist]

Do you know how much water you evaporate each day?

0.5 liter

 

[entist]

0.5 liter

Less than 1 liter

 

[JVS]

Put it into your auto top off. I use one teaspoon in a 3 gallon jug.

 

[Randy Holmes-Farley Verified Community Expert]

If you use an auto top off, it would be easy as you need very little. For manual once a day top off, it will likely still work.

You're alk demand is 4 dKH in a month or very roughly 0.13 dKH per day.

Assuming the total water volume is 15 gallons, then 2 ounces of saturated limewater per day will do it.

If you made up 5 gallons of top off water, add a half of a teaspoon of solid calcium hydroxide to it and use that for top off, watching that alk is not rising too much.

Adding all at once is OK. Add to a high flow area, and adding slowly is better.

 

[entist]

If you use an auto top off, it would be easy as you need very little. For manual once a day top off, it will likely still work.

You're alk demand is 4 dKH in a month or very roughly 0.13 dKH per day.

Assuming the total water volume is 15 gallons, then 2 ounces of saturated limewater per day will do it.

If you made up 5 gallons of top off water, add a half of a teaspoon of solid calcium hydroxide to it and use that for top off, watching that alk is not rising too much.

Adding all at once is OK. Add to a high flow area, and adding slowly is better.

Thanks so much [emoji7]

 

[Randy Holmes-Farley Verified Community Expert]

Thanks so much [emoji7]

You're welcome.

Happy Reefing.