I've got 3 new slime ideas to share with you, so let's start with the Ice slime!
Ice slimes could be found in an area like the Glacier Cliffs and they would eat fruits and veggies. They freeze other slimes and even the player for a small amount of time if they get too close. While frozen, slimes can't produce any plorts so it isn't a good idea to have them so close to other slimes in your ranch! Ice plorts would sell for about 50 coins and could be eaten by other slimes.
Mime slimes can mimic slimes that are around them. You can tell disguised Mime slimes from real slimes by checking if they have a glitchy effect around them. These slimes won't disguise if they are the only ones in the area and will turn normal if they are splashed with water! They will drop plorts as the slime they're disguised as but must be fed the food that those slimes eat. When normal they drop mime plorts that would sell for about 80 coins but cannot be fed to other slimes.I mentioned an idea for an area called the Glacier Cliffs when talking about Ice Slimes but I also have an idea for another area called Peach Beach. It would be a calm and relaxing tropical area but I'm not sure what slimes or food would be there!