Although algae is not a primary food for many pond fish, most species will still consume small amounts when available.
A baby guppy fish is given free when I bought the fishes from Padungan street in Kuching Aquatic shop just now.
PondMy Apartment Balcony Guppy.
Breeding Guppies Randomly in Rain Water Tub.
Guppies can eat their weight in larvae daily, but are tropical fish so need warmer water.
Picture of Constructing a Small Fish Pond in the Garden.