Kelp

Kelp is aquatic algae found in most oceans. It can be planted underwater and grows over time (though not forever) or from bone meal usage. Smelting it results in dried kelp, which is edible and craftable into dried kelp blocks.

Breaking

Kelp can be mined instantly with any tool or with the player's fist. Removing water from the kelp block destroys the kelp, , the water cannot be removed by a bucket. Breaking one part of a kelp stalk destroys all kelp blocks above it. Each block drops a kelp item.

Natural generation

Kelp naturally generates in any ocean biomes (except in frozen, deep frozen and warm), near and around seagrass. Each chunk has chance to generate a vegetation of kelp.

Trading

Wandering traders may sell 1 kelp for 3 emeralds.

Mob loot

, wandering traders have a chance of 8.5% (increased by 1% per level of Looting) to drop 1 kelp when killed while showing the item as trade offer, if the player holds an emerald.

Usage

Kelp can be placed underwater by hand, or anywhere by the use of commands such as . Placing it by hand gives it a random value between 0 and 24. Kelp can be placed only in water source blocks or downward-flowing water, not horizontally flowing water. When placed in downward-flowing water, the kelp becomes waterlogged, transforming the flowing water into a water source block, which is useful for faster bubble column elevator creation. Any building block can be placed on top of a kelp plant, which is useful for building structures over a deep ocean without needing to build from the ocean floor (see also lily pad).

Composting

Placing kelp into a composter has a 30% chance of raising the compost level by 1.