I'm almost embarrassed to ask this, but those little dead ocean barnacles
look so awesome, and have such wonderful natural caves (I just got some
Bumblebee Gobys) that I'm dying to put a small piece of this in my tank.
so assuming I can live with the unnatural contradiction of having a
saltwater item in my freshwater tank, my questions are as follows;
-what will this thing do/contribute to my tank chemistry over time?
I assume it's calcium, so it will raise my pH a bit, but that's OK
since I'd rather my pH was a bit alkaline, then more acidic.
-what other consequences are there? will it crumble and dissolve away?
does the color fade in a short period of time with only white remaining?