(04-01-2013, 11:06 PM)Ram Wrote: Actually that is not true. Fish size has nothing to do with the size of the fish tank whatsoever. Yes, I have heard of this false rumor from the novice fish keepers. It is false.
As for predators, it is rare to have cats fishing from the pond. This practice is fairly common with raccoon. I doubt they can catch a large koi fish, but smaller goldfish is fair game for them.
Thank you for explaining this. I can see that it's more likely for fish to grow bigger in an outdoor pond because generally they will live longer than a fish in a small tank.
There are no raccoons in my part of the world, but pond fish do get taken regularly by herons. Cats probably do not actually catch many fish, but might be tempted to try if it is just a small garden pond.
