Oncorhynchus tshawyts 8:00 to 2:00 is the feeding time. Oncorhynchus (also known as pintails) are mainly active at night, so their feeding time is usually at night. Specifically, angelfish foraging time is generally between 8pm and 2am, which is also the time when they are most likely to be caught. Angelfish are nocturnal fish, preferring to swim and feed at night, mainly feeding on plankton, small benthic animals and other fish. When feeding, angelfish will swim to the surface of the water or underwater shallow position, looking for food, so at night, if someone in the surface or underwater light or make noise, may attract the attention of the angelfish, and increase the chances of being caught.