Combine fumarole biome with stalagmite biome

[Beetrice]

The stalagmite biome has always been super super empty, and right now the fumarole biome is very empty as well. I think if you just combined the two, they'd become one of the coolest new biomes ^_^

[Dingle]

I like the idea of consolidating old cave biomes. Many are still really uninteresting, to the point where its hard to even remember them.

Theres the bat biome, and then the other bat biome, for example.  One has guano tiles and the other has more rifts? I only remember this much because I was just in there. There's not much of a difference.

[Kacpert25]

Maybe not combine, but the fumarole biome could always branch out from the stalagmite biome. Just as the Lunar Grotto always branched out from the blue mushroom biome.

[Milordo]

Hmmmmmmmmmnnn. You know what?

This doesn't sounds a bad idea at all!!!

Added here! --->

It could be a return to the Ruins origins! More reasons on the post.