Are my parameters ok?

[Hannahmunt]

Last week my alkaline was low at 6.4

22nd:

ka-7.9
Mg-1410
Ca-445

today:

ka-9.2
Mg-1390
Ca-465

I’ve not been adding anything I’ve just been doing weekly water changes and topping up with ro water when needed.

 

[vetteguy53081]

Last week my alkaline was low at 6.4

22nd:

ka-7.9
Mg-1410
Ca-445

today:

ka-9.2
Mg-1390
Ca-465

I’ve not been adding anything I’ve just been doing weekly water changes and topping up with ro water when needed.

Yes and keep it stable without adjusting any unless absolutely necessary

 

[Hannahmunt]

Yes and keep it stable without adjusting any unless absolutely necessary

So I need to keep these exact numbers?
They all seem to fluctuate but only a bit each day