Fish for controlling Duckweed.

Control Duckweed In your Pond with these fish

As many pond owners know, the common duckweed plant can be a major nuisance if it invades and overtakes a small pond or lake. With a little maintenance and attention you can protect your pond from duckweed infestation. Duckweed is ok for a pond as long it does not completely cover the pond. One way to ensure this doesn't happen is by introducing fish that eat duckweed.

The most common fish that people put in ponds to eat duckweed are tilapia and carp or koi. Adding a few of these fish to your pond can be all it takes to maintain a healthy balance.