help with ph

whats the best way to keed ph up? my ph is 7.8 and i add marine buffer and it goes up to 8.2 for about 2 days and then right back down

 

Increase surface agitation and air out the house to get rid of CO2 in the hours. Make sure your alk is dKH 7 up to 12. Get your Mg to around 1400 to 1500 help support your alk level.

 

my dkh is 8 to 9

 

The net consumption of carbon dioxide during the daylight hours, leads to some aquariums to become deficient in CO2 during the day, and the pH rises.If you are having dramatic fluctuations you can aerate the aquarium water to degass excess carbon dioxide. Also try using a salt mix with a naturally higher buffering capacity like Tropic Marin to help reduced the pH swings.

I try to stay away from dkH buffers and it seems like some people tend to use it too aggressively and end up making changes in the water chemistry in their tanks too quickly (in my opinion). I prefer to make any change in the water chemistry slowly over time. Usually a tank that has a low dkH took some time to get down there, it usually didn’t happen overnight. On the other hand, it’s also not good to have it raised to the desired level over night. . I dose my tank with TM Bio-Calcium which will slowly, over time, raise the dkH to the right level at the same time as keeping my Ca where I want it; essentially killing two birds with one stone.