amoxycillin and stronger are better to have......penicillin really aint worth a shit these days from what i understand.........you should be able to get all that from your local feed store.....

fishmox = amoxycillin

fishcillin= ampicillin

fishflex= cephylexin

those are the ones i have anyways.... im lookin to see who carries the fish or livestock version of clavamox....