copper kills inverts, so shrimp, crabs and the like will die too. copper is used in a few fish meds, but that is in a controlled situation. though it seems like a good idea, if the tank is empty of fish and is suffering from a snail infestation. adding carbon to your filter for a while will remove it.Has anyone heard of adding copper coins to the aquarium to eradicate snails? My tank is over run with these pests and it has been suggested by a tropical fish keeper that this method really works! Thanks.
lol "copper" coins are magnetic!!!!!!!!!! now! so don't think they are all copper! might be wrong though. loli would suggest a medicine as a copper coin could have lots of things lurking on it However considering this would kill the snails you would get a big ammonia spike which could harm fish so only any good in a fishless tank