Hello fellow reefers! I am having some issues keeping my CA/ALK stable. My tank is about 1 year old 70 gallon system. Its lightly stocked with corals, and 5 fishes.
Tested with Hana and Red Sea
Alk day before water change : 8.0 dKH
Alk few hours after water change : 8.3 dKH
Alk 2 days...