Just a couple of possible slime ideas.

[moomin74]

I thought perhaps a bee slime (or bumble slime), black and yellow stripes with wings like the phosphors and it buzzes. They would possibly sting you if you kept bumping in to them. In some areas they could also swarm (very dangerous). But if they sting you they die (vanish). They would eat pollen and possibly make honey which would attract honey slimes...

There could also be an invisi-slime, that you can't even see unless you briefly spray them with water or accidentally vac one! They could also have invisible plorts, which if another slime was able to eat (perhaps they can sense plorts even if they can't see them) woud make a semi visible or phasing largo!

[RadSlime3000]

bumble slime=good idea!

invisi-slime= uhhhh, no