Minecraft wiki entry for Aquatic, associated text: A deep lukewarm ocean with many glow squids.
A guardian attacking a squid.
Cods, tropical fish, turtles and a squid next to plants.
Many turtles on a lake.
Dolphins chasing after a raw cod item.
Dolphins in a Coral reef.
Alex fighting the guardians for promotional artwork for the Boss Update.
Squids making an 'ink cloud'.