The new area will have water containing sulphur, so if you use atadpole your vision starts to get worse. Maybe the new shrimp can have a feature where it cleans its windshield now and then
Story: As soon as the player is infected with the protea virus the only chance of survival is to find an special sort of angelcome. It will be like a hearth conected to veins wich lead to many creatures habitats this hearth is the natural enemy of the bloom so when you do something in all connected niches you can store sulphur out of the hearth in the new re-breather upgrade and later heal youreself with it.
creature: a lantern fish with sulphur in its lantern will live in the deep canyon part of the new area. When they sense the player the attack because they want to fight the protea-virus, when in conatct with ist lantern it explodes and leaves behind a poisonous sulphur cloud