I'm using Kent. Almost done my bucket, then I have some IO waiting...

I'll get hold of you tomorrow about the buffer thing. And thanks. :mrgreen:

Steve,

Don't have a clue other than baking it turns it to washing soda. The answer to your question could be in the article I posted.

I found out.. it drives off the CO2 so it will not drop your ph but it will raise it. so if we tank 7 cups of baking soda, bake one of the cups then mix it all together supposedly we have a mix that will have little impact on the PH.

Steve

Let's hear it for baking soda!
 

Things are looking better. Alk = 12 dKH; Calcium = 370; pH = 8.4. Birdsnest "bubbles" seem to be receding, definitely not growing. I think they might be hardening, but it's hard to judge by looking - apparently someone else with this problem saw their bubbles calcify and become part of the coral skeleton.

Maybe some new pics later...