Not when I put my net over it anyway lots of people told me u don't need a net as long as u have some rocks or plants on the side of the pond preventing it. One question, can you put one in and then maybe a week later put 2more in?
Yeah they'll try to cathc a bird and leap out u can put a thing around it but if they jump over that they'll be even more screwed than wigout it cus hey won't be able to get in