When I upgraded to LED
's and added a bunch of SPS
they took off growth wise. My alk
would drop to 4, my calcium to 280 due to the sps
draining it out of the tank. This is when I started dosing both calcium and alk
with dosing pumps and a controler. It brought my alk
back up to 9 and my calcium to 420 and stays there if I dose daily. If I stop dosing they drop, this i assuming is how you know your system needs dosing.
It took me 3 months of daily water tests to fully understand how much to dose of each (cal/alk
) daily to maintain. There's a science to it for sure...