What if either material do you think is safer for useing as a wieght to hold down plant shoots? Lead or Copper?
Tin has quite a bit of lead in it. The stuff I have is a tin base acctualy but I know it has lead in it too. Do you really think that copper will affect a tank with no inverts? I havent done any research on the effects of it on fish but I didnt think it was all that harmful Im probably wrong though as no one voted for it. I suppose I will just use the gravel to be safe rather than sorry.SnakeIce said:Niether one. AFIK the plant weights that come with some plants are tin or something similarly non toxic.