Forgot your question. Yes you immediately remove them from pond and place in tubby or sick tank and start treatment for particular ailment mostly by their body signs or syptoms. I keep an air stone and aquarium filter on hand to put on smaller tank.
Water changes and meds every day. It's a job in itself. Can't live them in with other fish as its easy to spread desease and it could wipe out whole pond of fish. It's a challenge but I still love the fish and listening to both my waterfalls.
Bonnie
