In the practical sense, the fish will chow on the mosquito larvae, which is an obvious and constant threat. Having a couple of mosquito fish, or even goldfish, will prevent the infestation of mosquitos .
FISH bring a fun and playful aspect to our pond.
However, if the balance is right, both fish and plants can live in harmony. The fish also play a key role in balancing the water quality. Their waste is essential to the health bactia which keep the water clean and clear. Then if you like, add fancier types of fish one or two at a time. Get the fish small and let them grow to fit the pond.