I don't know if this is in the right place or not, so if it needs to be moved, please do so.
I have been looking all over to find a list of common rocks we use in the aquarium, and the affects it has on PH. More specifically, what PH range each type will maintain in aquaria.
Texas Honey Rock:
I know some of these will be inert, but I thought a list might help some people out, including myself! If anyone has experience, or knows the affect any of these have on PH, please note it. Also, if anyone can think of more, please list it as well. I may try to get pictures to go along with it as well, since some rock is called other things in different parts of the world!