Description Large herbivorous lifeform, raised in containment. Description Incredibly, Peeper subnautica hatch from these.
The Reefback Leviathan is a passive leviathan class fauna species. It is the second largest passive life form, and ties with the Sea Dragon Leviathan for third largest creature overall. The Reefback is massive in size, with most of the creature’s body being comprised of a thick, dark-blue carapace with a rounded, triangular front, and a relatively small body concentrated in the posterior. Attached to its main body are three long whip-like tentacles. An adult Reefback has patches of teal-colored coral and brown-colored grass growing across its carapace, befitting its name, while the younger ones lack this trait. The carapace has a slightly bright blue dotted pattern across towards the back. Beneath its carapace, it is dark green with light blue bioluminescent stripes on the sides and in the middle.
On either side of its body are eight yellow bioluminescent bulbs. In the back of the Reefback, there are giant tubes. These seem to be where the calls of the Reefback come from. The Reefback drifts slowly and gently around the open waters of many biomes, mostly seen swimming in pods of more than two.
It rarely adjusts its current altitude, unless bumped against obstacles. Juvenile Reefbacks are a quarter the size of an adult. They can often be found with adults in certain locations. The Reefback will frequently emit a range of echoing, low-frequency calls.
They will only emit these calls if there are other Reefbacks nearby. This suggests that these calls are a form of communication, as opposed to echolocation. When Reefbacks are exposed to damage, their tentacles will wave quickly and they will move slightly faster for a brief period. When killed, their models and hitboxes completely disappear however the flora on their backs stay and fall towards the sea floor. Adult Reefbacks can support mini-ecosystems on their back.