Reverse lighting kalkwasser addition

TLO45

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I’m debating trying dosing kalk over night to raise ph. Ph really seems to be the big topic right now and am not 100% sure it is a critical as many say… however I do agree higher ph is beneficial to better coral growth.
Here’s my question:
I run a duel chamber CA reactor that runs 24/7 and keeps my alkalinity very stable (8.5). I would like to keep it in that range.
My ph fluctuates between 8.0 to 8.2 daily. I do run a refugium on a reverse lighting schedule from the main display as well as a co2 scrubber to maintain ph at or above 8.0.
I also have a whole house air to air exchanger as well as a second air to air exchange in my fish room to remove as much CO2 in the room. CO2 monitor usually reads about 550 in my fish room which I feel is pretty good.
I’m wondering if I dosed a SLOW drip of kalkwasser during the overnight hours could I maintain a higher ph over the dark hours of the display and still maintain a steady alkalinity reading or would my Alk bounce around from only adding kalk during a 12 hour period?
This would NOT be a total evaporation amount of limewater on a daily basis, rather just a very slow drip to boost ph.
I would be dosing the kalk water through a Kalk stirrer that would be stirring 24/7 even though the dosing would take place during the lower ph times of the night.
Thoughts?
 

Troylee

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It should work great! Just gotta dial back the ca reactor a smidge and keep an eye on everything while it adjusts…. I use kalk in my top off and my ph stays high! No scrubbers no open windows and no reverse lighting schedule lol.. just kalk only.
 

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TLO45

TLO45

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It should work great! Just gotta dial back the ca reactor a smidge and keep an eye on everything while it adjusts…. I use kalk in my top off and my ph stays high! No scrubbers no open windows and no reverse lighting schedule lol.. just kalk only.
What size system?
 

Randy Holmes-Farley

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This would NOT be a total evaporation amount of limewater on a daily basis, rather just a very slow drip to boost ph.
I would be dosing the kalk water through a Kalk stirrer that would be stirring 24/7 even though the dosing would take place during the lower ph times of the night.
Thoughts?

Seems like a fine plan to me.

Dosing high pH alk additives at night does tend to swing alk while it stabilizes pH.
 
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TLO45

TLO45

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Seems like a fine plan to me.

Dosing high pH alk additives at night does tend to swing alk while it stabilizes pH.
So do you think it would be better to keep things the way they are or dose kalk nightly and bounce alkalinity numbers some?
 

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