redruckus
Aquarium Advice Freak
I live on the north shore of lake superior and there are alot of very nice round mamazingly colourd rocks mostly granit and shale but ther are a few other types i havent been able to identify would these rocks be safe for my aquarium or do i have to worry about having and hiden minerals or metals that would some how leech out of the rocks and kill my fish...i would obviously give them a thurogh boil befor it put them in my tank