myriam
Aquarium Advice FINatic
My father-in-law collects rocks, and he would like to give me some for my tank. They are quartz and polished agate. How can I be sure they won't mess up my water?
One of the pieces, which I haven't seen yet, is apparently like a small cylindrical tube that the fish can swim through.
Hydrochloric acid is the usual test. I'm pretty sure there is another one commonly used, but I'm unsure of what type it is.
That sounds pretty familiar to me. I'm just curious as to where I could find them locally...I think I read that muratic acid is the other