I have a 125 Gallon and I want to add river rock, where I live there is hundreds of tons and I was told I can use them if I wanted. I don’t know what kind of chemicals they used to kill weeds or whatever.
Is it worth cleaning them up and use them or are they pretty much ruined? Recently the only weed killer they used has been vinegar and water and bleach. Many years back they used roundup.
I’m in no rush, but if it’s something I can clean how would I go about doing so so make them tank clean/friendly.