So I was at a friends house the other day and she has a moor in a 5 gal. The water level is even real low so it's probably in 3.5 gals. I am not a goldfish expert but I tried to educate her a little bit about them. She said she has a pond outside and debated putting it in there but wasn't sure if it would survive out there. I've never seen fancy goldfish in a pond so I wasn't sure how that works. What temps can they survive in? I'm sure this pond gets no upkeep..would the fish be better off out there?