View Full Version : Diurnal PH swings

08/10/2017, 03:17 AM
Hi, my tank's PH varies between 8,2 at the end of the day and 7,8 at night. Is this too large of a swing? I was thinking about adding kalkwasser to raise it a little bit but I guess that would just move the swings up a bit (say to 8,0 -8,4?) but would not solve the swings per se.

Of course, if 7,8-8,2 is fine than I would rather not do anything unless the higher range would improve coral health and calcification.

I know running a refugium in reverse light schedule (which I have) helps to smooth out the swings but do not want to do it at this stage.

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08/10/2017, 06:25 AM
That's a fairly normal spread. A lot of Tanks of the Month run at 7.8. Personally, I wouldn't worry.

08/10/2017, 06:26 AM

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