Aquatic Prehistory
At least half of the creatures currently found in Minecraft PE will be replaced by prehistoric aquatic animals once you install the mod titled Aquatic Prehistory. This includes everything from massive whales to tiny crabs. Since most of these creatures will not spawn naturally in the ocean, they are ideal for creating an aquarium or perhaps a fish tank right in your MCPE world home.
Most aquatic animals will replace mobs from Minecraft Pocket Edition that originally spawn on land, meaning you generally won’t find them spawning in oceans (with a few exceptions). However, you can use spawn eggs from the creative inventory or the /summon command to bring them into the ocean.







