Am i doing this wrong with alk?

[Notsolostfish]

Iv been dosing all for reef for almost 2 years now, recently switching to powder. However. I noticed my alk been dropping to below 8. 7.8 i usually keep my alk at 8.7. So i raised my alk to 8.7 and then increase my afr dose from 62ml to 70ml. My tank is 150G total water volume. My lights comes on at 12:00 pm and turn off 9:00pm. I tested my alk with hanna at 6:00 am. And i noticed my alk is at 8.3. Why its not holding the 8.5-8.7 range?

 

[Notsolostfish]

Bump

 

[Notsolostfish]

My alk keep trendint downwards. Iv been raising my afr for the past couple of weeks. And i cant seem to find a number. Went from 55 to 62 to 70ml now for my 150G. Its a mixed reef

I dose every 24 hours so its around 3ml/hour

 

[Science/G]

Consumption increase.

 

[DanyL]

Is your calcium decreasing too?

If not and its building upwards, it may be a lack of nutrients.
A4R is based on Calcium Formate and it's alkalinity release depends on bacterial processing, lack of nutrients may slow down this process.

 

[BlueBayouReefHTX]

Calibrate and check your doser. This exact thing happened to me. Or try manually dosing for awhile and see if anything changes.

 

[hoffmeyerz]

Also, how are you spacing the dosing intervals? The only way I could keep my ALK consistent was to have my DOS dose over the whole 24hr period. If your dosing once, or only a couple times during the day you will let a swing.

 

[Notsolostfish]

Also, how are you spacing the dosing intervals? The only way I could keep my ALK consistent was to have my DOS dose over the whole 24hr period. If your dosing once, or only a couple times during the day you will let a swing.

I dose 3ml every hours 24 hours like i mentioned

 

[hoffmeyerz]

Sorry, I missed that in the later post.
Any changes in other nutrients or new corals added? Otherwise a consumption increase like mentioned above.

 

[Randy Holmes-Farley Verified Community Expert]

Dosing more is the simple answer. There may be different reasons why alk is declining, but all are solved by dosing more AFR.

 

[Notsolostfish]

Dosing more is the simple answer. There may be different reasons why alk is declining, but all are solved by dosing more AFR.

I raised from 62ml to 70ml. And im still dropping from 3/17 i was at 7.8 raised my alk to 8.7 and then raised afr to 70ml and still dropping thats kinda insane? Is that even normal to dose everyday that much?