I am do to change out some water this Sunday. About 30 Gallons. I was thinking about putting that water into a garbage can and running a PH
for a week or two. I was thinking of putting the rock into the can and see what happens. Since I am not sure what the rock is made of I really don't want to put into the tank. I do know for sure it is not slate or granite. It has to be either limestone or sandstone. I am leaning toward the limestone because it is plentiful in this area. This rock has been setting in this area for at least 50 years.
Anyway, what should I be looking for if I was to put into the can with my change out water from the tank?
Thanks for all the replies.
125 Gal-35 Gal Wet/Dry-Tetra-Tec PF500 HOB
(3) AuquaClear 301 Powerheads-600 GPH
Automatic Tempature Controller
5-6 Inch Sand Bed-200+ lbs of LR