PH too high?

[fishybizzness]

so I added an Avast marine kalk stirrer to my system last Tuesday. My ph ,as with most tanks, goes down at night and up in the daytime. I set it up to dose around 100 ml every 2 hours with a brs dosing pump starting at 6 pm and ending at 8 am. The total amount dosed is around 1/4 gallon to start. My ph used to run from around 8.1 to about 8.3. It now runs from around 8.28 to 8.39. A few times it has spiked to 8.41 or 8.42 during the afternoon. I tested my alk and calcium after 4 days and they were spot on at 8.2 and 430. My question is, is it a big deal for my ph to be spiking about 8.4 for a short period, about an hour, some afternoons or am I just getting worked up over nothing? I have attached screenshots of before and after adding the Kalk stirrer. Thanks for your help!

 

[RM24]

Those numbers are in the "acceptable range". 7.8 to 8.5 is good. That swing is nothing to worry about at all.

 

[fishybizzness]

Any other opinions or suggestions?

 

[hyeclass]

You're lucky my ph is always low 7.8

 

[fishybizzness]

I live in the Caribbean so my windows are always open. I never had a problem with it being low, just getting a little high.

 

[Randy Holmes-Farley Verified Community Expert]

Unless the pH gets above 8.55, it’s fine, IMO.

 

[fishybizzness]

Thanks for the reassurance! If i may ask, what are the benefits/issues with ph in the 8.4+ range?

 

[Randy Holmes-Farley Verified Community Expert]

Thanks for the reassurance! If i may ask, what are the benefits/issues with ph in the 8.4+ range?

Hard corals may grow faster.