+1, i prefer dosing Kalka on my refuge, i love Deltec Kalk stirrer, only clear water go OUT of reactor.Kalkwasser in your ato
Better surface water movement
Air line for skimmer from outside
Aquavitro fuel is a good amino source. I've been using it for years dosing twice a week if i remember.Check Magnesium, and Strontium levels. There are some good products out that target specific colors in corals. Basically minerals, traces and amino acids. I think Aquvitor not sure..