It depends how deep the pond is, mine is 4 feet deep: have a 17" tem and a 10" orino: never jumped 
Sent from my iPod touch using MonsterAquariaNetwork app


Sent from my iPod touch using MonsterAquariaNetwork app




If you're worried about the temperature and you don't want the net then why bother taking the risk?
Those fish are too special to gamble with, keep them safe and where you can keep an eye on them is my thoughts - how much faster growth could you possibly achieve in a pond? Not much i wouldn't think...