please help guys my little brother dropped some scissors in my shrimp tank ,the scissors have rust i did a 50% water change but some of the shrimp arent moving they are just in one place, i already had one die right now , i have purigen and put seachem prime to try and remove the copper or heavy metals in the water .the scissors weren't in the tank for long at all maybe like 5 seconds because i noticed right away
my dwarf crayfish and snails are doing fine though