I am starting my outdoor pool/pond. It really just consists of a little kids pool. I was wondering what percausions you have to take with useing plants such as water hyacinth, duckweed, and water lettuce? The reason I ask is because I went to my garden store to look at some of thier products. When I did so I noticed that there were bugs in the water. Do I have to be causious with buying water plants. Also I know that nematodes effect some reptiles but I don't know about turtles (I saw some wormlike things in the water they were keeping the plants in. Let me know! THANKS

