Igloo Cryodome

The igloo cryodome replaced its ancestor the hollow cryodome in Sublyme Limestone Caverns and Drake Water Table. Due to it being isolated underground for so long without sunlight it lost all is pigment and photosynthesis. They appear white in color because of this.

Like their ancestor it has a symbiotic relationship with cryodome hydroutine. Its spongy insides support the hydroutine and give it water, while in return the hydroutine gives back the energy it produces. They are semi-aquatic and can survive underwater and well as above it. If underwater it can directly bring in minerals for the hydroutine to use and if on land it will absorb these minerals with its roots.

They are completely reliant on the microorganisms for energy and cannot grow without it. The seeds it produces will not start growing unless there is cryodome hydroutine present. The seeds start out hollow and float in water or will easily roll on the cave floor like a ping pong ball. Once they start growing they will anchor to the floor and fill up with water to start harvesting hydroutine. Due to the small amount of energy they get from cryodome hydroutine they grow extremely slowly and thus have very long lives. It can take decades for them to even produce their first seed.