Coral Reef

Coral Reef

Biomes	Warm Ocean Deep Warm Ocean‌[BE only]
Generates in existing chunks	No
Consists of	Coral Blocks Coral Coral Fans Sea Pickle ‌[JE only] Dead Coral Blocks ‌[BE only] Dead Coral Fans ‌[BE only] Granite ‌[BE only] Diorite ‌[BE only] Andesite ‌[BE only] Sand ‌[BE only]

Coral reefs are features that generate in warm ocean biomes. They consist of multiple clusters of coral blocks, coral, and coral fans. These clusters come in a wide variety of shapes, sizes, and colors.

Generation

Java Edition

The distribution of coral reefs is noise-based, which means that in some places of warm ocean floor, the reefs are distributed densely, and in other places there's no coral reef at all.​

There are three types of coral reefs: coral tree, coral claw, and coral mushroom. Coral tree has a main trunk and two to four branches that tend to point upward. Coral claw has two to three branches that tend to point horizontally. Coral mushroom looks like a small hut or a domed building.

All these three types consist of coral blocks, coral, coral fans and sea pickles.

Seagrass and sea pickles can generate on coral blocks because they are generated later than coral reefs. Coral reefs may have several sea pickles on them, but not all sea pickles on them belong to the coral reef feature.

Bedrock Edition

In Bedrock Edition, coral features densely cover warm ocean's floor, and there are two types of coral features: huge coral and small coral.

There are two types of huge coral: coral (coral reefs) feature and coral crust feature. Coral feature comes in four varieties of shapes, including small clump, tree-like coral, craw-like coral, and coral spire. Coral crust feature is a huge pile of blocks including coral blocks, dead coral blocks, andesites, diorites, granites and sands. Both types of huge coral have some coral fans attached to them. Unlike Java Edition, there are no sea pickles in these features; however, seagrass feature and sea pickle feature can also generate on them.

There are two types of small coral: sea anemone feature and coral hang feature. Sea anemone feature consists of coral and coral fans, generating attached to the top surface of blocks that are not lower than 16 blocks below the sea level (Y>=48). Coral hang feature consists of coral fans, generating attached to a side surface of blocks that are not lower than 14 blocks below the sea level (Y>=50).

Structure

This feature is exclusive to Bedrock Edition.

In Bedrock Edition, coral crusts are generated with structure files, which are stored in the behavior_packs/vanilla/structures/coralcrust folder.

The structure blocks do not appear in the final generation.

Structure name	Consists of	Image
coralcrust/crust1	31Sand 20 Diorite 10 Andesite 12 Granite
coralcrust/crust2	22 Granite 19 Diorite 16 Andesite 11 Sand
coralcrust/crust3	17 Sand 14 Diorite 13 Granite
coralcrust/crust4	16 Andesite 11 Granite 9 Sand
coralcrust/crust5	33 Andesite 15 Diorite 10 Sand
coralcrust/outcropping1	9 Diorite 8 Andesite
coralcrust/outcropping2	12 Granite 11 Andesite 8 Diorite
coralcrust/outcropping3	14 Diorite
coralcrust/outcropping4	14 Granite
coralcrust/outcropping5	12 Andesite
coralcrust/outcropping6	28 Granite

Data values

ID

Java Edition:

Feature type	Identifier
[No displayed name]	coral_claw
[No displayed name]	coral_tree

Configured feature	Identifier
[No displayed name]	warm_ocean_vegetation

Bedrock Edition:

Feature	Identifier
[No displayed name]	coral_feature
[No displayed name]	coral_crust_feature
[No displayed name]	coral_hang_feature
[No displayed name]	sea_anemone_feature

Config

Java Edition:

{
  "type": "minecraft:coral_claw",
  "config": {}
}

History

Java Edition

Bedrock Edition

Issues

Issues relating to "Coral Reef" are maintained on the bug tracker. Issues should be reported and viewed there.

Gallery

Screenshots

• 
  A coral reef viewed from above
• 
  A coral reef that generated in a canyon
• 
  A view of coral reefs
• 
  A view of a coral reef close-up
• 
  A coral reef as of snapshot 18w14b
• 
  Coral reefs and aquatic mobs
• 
  A ruined portal generated near a coral reef
• 
  A coral reef underwater
• 
  Coral reef structures as they appear in Bedrock Edition

In other media

• 
  Official coral reef artwork
• 
  Aquaman in a coral reef

References