I only keep the alk
and cal in balance like the others have said..... Never tested for mag or stron, never heard they were important for coralline growth before.
I have tons of CA
in my 125 reef with VHO
lighting and I have tons in my 55 fowlr
lighting. As others have said it will grow under most lighting conditions but seems to be slower under MH
. Talking to some of my friends who have MH
lights and there CA
growth is slow.
So I would pick up a test kit for alk
and cal, I dose the tank with Bi-ionic 2 part system to keep the levels balanced. If your levels are down bring them up slowly. Good luck