Alk vs Cal dosing ratio (BRS two parts)

[roostertech]

I'm currently dosing
15ml Alk
10ml Cal
10ml Mg

And my alk is slowly drifting downward, about .05 per day.

Cal at 400, Mag at 1300, both hold steady

I read that ideally I should dose both equally? Should I up my cal if I need to bump alk further?

140g system, lightly stocked with handful of sps

 

[Randy Holmes-Farley Verified Community Expert]

If you dosed both equally, you'd likely be fine and I see no reason to not do so unless calcium is already too high. Yours is actually on the low side anyway.

You'd not detect the calcium decline that is associated with a 0.05 dKH per day drop in alk (0.3 ppm) without testing for a long time.