What the @#&%?? Birdsnest Bubble Growths

[Beverly]

Alan,

If you mix kalk and baking soda, it precipitates and you get a big mess. I did not add this mixture to my tank, but discarded it.

What I did end up doing was adding kalk from one container and baking soda from another container to the tank at the same time. pH remained relatively steady, though I'm thinking the change in alk might have been stressful to the tank, but I could see no evidence of stress in either the fish or corals.

Steve,

It was a long time ago that I used baking soda alone to change alk, so I don't remember. Sorry.