Use a dip net, and give them to someone who likes turtle soup, assuming they are snapping turtles. Any other kind, I wouldn’t worry too much, so long as you are introducing Koi.
In my experience, it’s bigger fish and birds that are the worst culprits. Since the turtles are already in the pond, there must be stuff in there that they are eating already. Sure, you may lose some small fish to them but I am assuming that there are already plants in place for your fish to hide in. There may already be fish in there (eggs get brought in by birds) and these may eat your new fish but as the new fish grow there will be less chance of this. As your fish grow, they will learn to hide from birds, just as they learn to come to the surface when they see you. Frogs will also eat small fish. If you just want fish, don’t put them in a big pond,put them in a more protected location, such as a ornamental pot/fountain and be prepared to bring them in for winter.
Use a dip net, and give them to someone who likes turtle soup, assuming they are snapping turtles. Any other kind, I wouldn’t worry too much, so long as you are introducing Koi.
In my experience, it’s bigger fish and birds that are the worst culprits. Since the turtles are already in the pond, there must be stuff in there that they are eating already. Sure, you may lose some small fish to them but I am assuming that there are already plants in place for your fish to hide in. There may already be fish in there (eggs get brought in by birds) and these may eat your new fish but as the new fish grow there will be less chance of this. As your fish grow, they will learn to hide from birds, just as they learn to come to the surface when they see you. Frogs will also eat small fish. If you just want fish, don’t put them in a big pond,put them in a more protected location, such as a ornamental pot/fountain and be prepared to bring them in for winter.