Dosing Kalk and using a CARX

[WhatCouldGoWrong71]

Good Morning,
I’m trying to figure out stability and how to flat line this situation.

- 65 g system

CARX
- chamber PH 6.82
- 50 mills a minute
- currently shutting the co2 off from 22:00 to 06:00
- I was shutting it down for fear that DKH would increase even higher over night and also drive PH down

Kalk
- Dosing 100% evap between 22:00 and 10:00. Mixing the kalk at the max.

Testing
- Hacked my trident and testing Dkh 9, 12, 1:30, 3, 4:30, 6 and 7:30 for now until I see some progress (testing CA and MG once a day)

Update
- last night I left the CARX on all night. No impact to PH we will see what the 9:00 test looks like in 45 minutes. Anyone want to bet?

How can I get this more flat lined using kalk and CARX? Those DKH peaks are 09:00.

I forgot to add (lol) that I also dose sodium hydroxide from 13:00 to 17:00, 35 mil. My very heavy lighting period (full spectrum and T5s is from 10:00 to 17:00, then goes blue. Tank is 100% Acro which have all most started to take off and have tons of white tips in the tank.

Thanks for reading.

 

[Randy Holmes-Farley Verified Community Expert]

It's always a trade off when using kalkwasser/hydroxide. Add it at night to bring up the low ph. Add it during the day to stabilize alk. There's no simple solution to it that I know of (at least not by dose timing).

In fact, I do not know which is more important, and they are tied together in complex ways:

https://www.reef2reef.com/threads/alkalinity-stability-ph-stability-are-they-even-different.711768/

 

[WhatCouldGoWrong71]

It's always a trade off when using kalkwasser/hydroxide. Add it at night to bring up the low ph. Add it during the day to stabilize alk. There's no simple solution to it that I know of (at least not by dose timing).

In fact, I do not know which is more important, and they are tied together in complex ways:

https://www.reef2reef.com/threads/alkalinity-stability-ph-stability-are-they-even-different.711768/

Thanks Randy. I put a CARX on this system to learn how to use it over the last 7 months, as that is when I ordered my
New 400g peninsula, which is now only weeks away… pacing like a school girl on prom night. Sadly, I’ll be breaking this tank down to consolidate, man has this tank hit its stride.