Critters come and go each month for Animal Crossing players. Some fish are here for a month then gone. Others have a longer shelf life, but are still seasonally based. They also have different spawn times and spawn rates, so any given time and any given day in Animal Crossing could have completely different fish for players to find.The month of September is right around the corner and that means new fish, new items, new seasonal events and more. Here's a complete list of fish that will be leaving and arriving in the month of September in Animal Crossing: New Horizons.Fish coming and going in September for Animal CrossingHere are the fish that will be arriving for the first time in September and their accompanying price tags as well as their locations. Fish can be a great source of bells for Animal Crossing players who catch the right ones. They can also be used to complete the collection at the museum.Pike- 1,800 bells- RiverCherry salmon- 1,000 bells- River clifftop pondChar- 3,800 bells- River Clifftop pondGolden trout- 15,000 bells- River clifftopI caught a GOLDEN TROUT!! #AnimalCrossing #ACNH pic.twitter.com/hJSo5BPgki— Steve Zaragoza (@stevezaragoza) April 19, 2020Salmon- 700 bells- River mouthKing salmon- 1,800 bells- River mouthMitten crab- 2,000 bells- RiverSturgeon- 10,000 bells- River mouthThose fish will be arriving in September, but Animal Crossing players will need to catch these fish before they leave at the end of August.Killifish- 300 bells- PondFrog- 120 bells- PondGiant snakehead- 5,500 bells- PondNapoleonfish- 10,000 bells- SeaSquid- 500 bells- SeaA Napoleonfish, the most expensive fish leaving in August. Image via NintendoAnimal Crossing players will also need to prioritize these fish in the month of September, as they will be leaving when October rolls around.Crawfish- 200 bells- PondSoft-shelled turtle- 3,750 bells- RiverSweetfish- 900 bells- RiverSalmon- 700 bells- River mouthKing salmon- 1,800 bells- River mouthNibblefish- 1,500 bells- RiverPiranha- 2,500 bells- RiverArowana- 10,000 bells- RiverDorado- 15,000 bells- RiverGar- 6,000 bells- PondArapaima- 10,000 bells- RiverSaddled bichir- 4,000 bells- RiverClownfish- 650 bells- SeaSurgeonfish- 1,000 bells- SeaButterfly fish- 1,000 bells- SeaPufferfish- 250 bells- SeaBlue marlin- 10,000 bells- PierOcean sunfish- 4,000 bells- SeaSaw shark- 12,000 bell- Seahammerhead shark- 8,000 bells- SeaGreat white shark- 15,000 bells- SeaAlmost died catching this Great White Shark. #AnimalCrossing pic.twitter.com/DxP2XQP3gP— Kim Newman (@KimboSlasher) March 21, 2020Whale shark- 13,000 bells- SeaSuckerfish- 1,500 bells- SeaBe sure to catch these before they leave!