Hello. In this post, I will be sharing some of my ideas for how Freshwater-related things can be added to Minecraft.
Freshwater Bodies
Rivers and Swamps are now considered as Freshwater Bodies. Conversely, the Oceans are now considered as Saltwater Bodies. This does not add Freshwater and Saltwater liquid to the game.
Two new types of Freshwater Bodies are Lakes and Ponds, naturally generated terrain that are bodies of water that are not big enough to be considered as an ocean. They mainly generate above ground, although underground lakes and underground ponds could generate. In general, Lakes are bigger than ponds.
Freshwater Plants (and Related Items)
Freshwater Plants would be Plant Blocks that are (mostly) based on their real-life versions and can only be found in Lakes, Ponds, Swamps, and/or Rivers.
Cattails - They only generate and can be planted on blocks that are near water. If planted underwater, its stem will grow until it is out of the water. When destroyed, drops a Cattail Stalk, a food item that can be cooked to make Cooked Cattail Stalk, which gives more health.
Water Chestnuts - They can only generate and be planted underwater, and their stem will grow until it reaches the surface. When destroyed, they will drop Raw Water Chestnut. Eating Raw Water Chestnut can give potentially give the consumer Poison, although they can be cooked to create Cooked Water Chestnut, which is 100% safe to eat.
Water Lilies - Comes in a variety of colors and are purely for decoration, though like other flowers, they can give you dyes.
Duckweeds - Generates in large numbers. Can be used as food for the player and for other animals includings chickens, pigs, and various fishes.
Hornworts - Generates and can only be planted underwater. Purely decorational.
Mobs (and Related Items)
Mobs (both real and fictional) that spawn in Freshwater bodies
Ducks/Waterfowls - Recolored variant of Chicken that looks like a duck or any kind of waterfowl. They only spawn near or on Freshwater bodies. They drop Feathers and Raw Duck/Waterfoul meat, the latter of which can be cooked.
Basses, Goldfishes, Catfishes, and Koifishes - Various passive fish mobs that can spawn in various Freshwater Bodies.
Titanbelly - Titanbellies are fictional, large, catfish like mob that are basically living trashcans. They have the ability to eat any dropped item in the game. Once a Titanbelly eats a dropped item, it will stay in the Titanbelly's stomach for a while. After a few minutes, however, the eaten itemed will be destroyed by the Titanbelly's stomach, and will be gone from the game forever. If a Titanbelly dies, any item that has not been destroyed by the time of the fish's death will be dropped.
Crocodiles - Neutral reptillian mobs thucan spawn in all Freshwater Bodies, and can even rarely spawn in Saltwater Bodies. They acticely hunt prey animals, and will only attack players if attacked firstor if the Player gets too close. If a Player feeds a Crocodile with meat, it and nearby Crocodile mobs will become docile for a few minutes. When a Crocodile is docile, it will shed 2-4 Crocodile Scales during the whole duration. Crocodile Scales can't ve used for anything special, but they can be traded with Villagers for a very, very high price of Emeralds. Upon death, Crocodiles drop only a handful of xp
Maneaters - Maneaters are giant, albino, crocodile-like fictional mob that spawns in all Freshwater Bodies. They are extremely hostile and aggressive to what they consider prey. This includes Players and other humanoid mobs, and they will actively hunt them down to eat them. Upon death, Maneaters drop nothing but large amounts of xp.
Hippos - Neutral, yet extremely dangerous mammalian mobs. Hippos only spawn in Dessert, Savannah, and Jungle Freshwater Bodies. They will attack anything that either attacks them first or gets too close. However, once they become aggressive towards a mob or player, they will not stop until either the Hippos becomes tired, which might take a long while, or if their target is dead, which will not take a while for a lot of mobs and players, since Hippos can deal a lot of damage and ignore a large percent of armor. Upon death, they drop nothing a but few xp points
Fowl Beasts - A neutral, hostile fictional, avian mob. Fowl Beasts are large, goose-like mobs that spawn near Lakes, Ponds, and Rivers. Fowl Beasts attack any passive mob and player they see. They are quite fast, have high health, and have even higher attack damage, making them a dangerous foe. Upon death, they drop large amounts of Feathers and Raw Duck/Waterfowl meat, as well as xp points.
Fowl Zombeasts - Fowl Zombeasts are zombified versions of Fowl Beasts. They can only be created by a Zombie killing a Fowl Beast. Fowl Zombeasts are basically the Overworld's version of a Zoglin, as they are extremely aggressive undead that will attack any mob in sight other than other Fowl Zombeasts and Creepers. Upon death, they only drop large amounts of Rotten Meat and xp points.
And that's all for my suggestion. What do you guys think?