the Bladder Eel Leviathan is a creature related to the houndgar and 1: it lives on the seafloor. and 2: both male and female are same size range of 55 to 90m in length. and 3: their color scheme has black and blues and they have blue trasperent airsacks that are the size of humans with each external airsack being human and a half apart. and 4: the airsacks serve 3 purposes. 1: to breathe as it’s gills are mostly covered with armor to protect itself from predators like the collector leviathan. 2: to propule it as it has thrusters as it uses the water to launch. 3: to filter feed to eat mircospoic plants and plankton and 4: also it can produce breathable oxygen bubbles from it’s airsacks as a waste product like the oxygen tunic. and 5: it’s tail is mostly to steer itself rather than swim or to block stuff as under it is a plug [door headed ant style]/5B: also to anchor itself into the sand. and 6: it has 4 praying mantis like appendages as it’s mandiles and like sharks it can generate them really fast as yes they do eat small fish and plants and eat corspes. and 7: as how their reproduction works is that the male does a courtship dance using his 4 extra appendaces that develop for males and females for males it’s both a warning that it’s poisonous and shouldn’t be eaten as they only become poisonous in adulthood and also to mate for females it’s simply to signal to males that a female is there and also to signal they are poisonous as females rarely move. 8: and how it works is that after eggs are feralizted they look for either a giant plant or a giant corspe as they lay their eggs there and the female makes a camber out of organic matter and salvia with only a small hole as the male brings the food for the female and babies [hornbil style] . 9: and the plugs on their tails are to block entraces they make as they do make burrows then when babies are hatched the babies go into the female’s womb again as it’s a pouch to be taken to areas full of jellyrings as yes the babies need lots of heat without overheating aka the jellyring is their heater as the jellyring provides the heat for babies and the adults aka the mother and father protect the jellyring because it has their babies incaubiting and also they have sharp spikes that are like the stonefish and have dangrous venom and their airsacks can be used to make pressurized water attacks as mentioned in it’s PDA entry it broke someone’s neck and need to be reprinted. note it’s also inspired by the Bladderfish from Subnautica 1