...never said I agreed with the law. Classing cyprinids except the minnow as native in Ireland is suspect anyway. All introduced by monks when our neighbours from across the Irish Sea took over for some centuries. Same goes for pike. Not a native species either. Why couldn't they introduce the grayling over here? At least a decent game fish to be flogging a fly rod for while freezing your nether regions off on a cold New Year's day.

It is great to see some one taking an interest in our wild species something i hope to do when i have more space. But i would ask have you considered what treatments you will use on them as i think this would be advisable from the begaining. pm me later I have to look for a link which might be of use in this case

All I would do is worm them. Wild fish generally carry some sort of worm. Any other treatments should be done as required. Same as for tropical fish