There shouldn't be an issue.
It doesn't matter what copper medicine you get, just get the stuff you think looks best.
Copper can remain in tanks for a long time, so in case you ever decide to use it again do some large water changes.
It doesn't matter what copper medicine you get, just get the stuff you think looks best.
Copper can remain in tanks for a long time, so in case you ever decide to use it again do some large water changes.