Bioluminescent EXP water cave.

I think that a biome with EXP underwater on the floor would look super cool and almost like glow bugs in a cave. I think that this would go perfectly with the glow squid and a plant at the sea floor that spits out EXP would be really useful for getting levels on a peaceful world, where EXP farms are not a thing. Maybe dripstones in this biome only spawn on the roof and drip EXP sometimes or the water in the caves is a bit more glowy.