Carbon dosing vinegar with kalk

[Ken S]

Did your pH go up at all? I remember Reefdork saying that when he started dosing kalkwasser, the increased growth rate of his stony corals resulted in increase calcium and alk uptake and in the end he had to keep dosing the same amount of two part.

This may be what is happening. PH has dipped slightly, like Alk & Ca. I am dosing 130ml of two part (along with Balling C + DIY Mg). I think I will up the amount to 140ml and see what happens, agreed?

The skimmate has turned almost black. It's the darkest it has ever been by far since I started this tank. I haven't cleaned the skimmer since I started dosing carbon. I will do it this weekend.