Guide to Hybrid Aquatic's New Corals and Biomes
This guide covers the new coral types and diverse biomes introduced by the Hybrid Aquatic mod, which enhances underwater exploration in Minecraft. The mod adds a variety of blocks, including new corals, and expands aquatic environments with new creatures and biomes, aiming to blend realism with creative exploration.
New Coral Types
Hybrid Aquatic introduces new types of corals. One such coral is the 
Bleached Lophelia Coral Block. This block can be crafted using a specific recipe.
To craft a Bleached Lophelia Coral Block:
- Combine 8
Dead Lophelia Coral Block with 1 
White Dye.
New Biomes
The mod expands the underwater world with several new biomes, each offering distinct characteristics and creature spawns.
Seagrass Bed
The Seagrass Bed biome is found in temperate climates, with a temperature of 0.5.
- Monster Spawns: You may encounter spiders, zombies, zombie villagers, skeletons, creepers, and slimes in this biome.
- Water Creature Spawns: Dolphins spawn in the Seagrass Bed.
Tropical River
The Tropical River biome features a hot climate, with a temperature of 0.95.
- Monster Spawns: Spiders, zombies, zombie villagers, skeletons, creepers, and slimes can spawn here.
- Creature Spawns: Frogs are found in the Tropical River.
Cold Trench
The Cold Trench biome is located in temperate regions, with a temperature of 0.5.
- Monster Spawns: This biome can spawn spiders, zombies, zombie villagers, skeletons, creepers, and slimes.
Coral Reef
The Coral Reef biome is characterized by a temperate climate, with a temperature of 0.5.
- Monster Spawns: Expect to find spiders, zombies, zombie villagers, skeletons, creepers, and slimes in this area.
Deep Warm Ocean
The Deep Warm Ocean biome also has a temperate climate, with a temperature of 0.5.
- Monster Spawns: Spiders, zombies, zombie villagers, skeletons, creepers, and slimes are among the monsters that can spawn here.
Hybrid Aquatic aims to provide a more diverse and engaging underwater experience through these new biomes and blocks.
The one structure, and how common it is
The mod adds exactly one structure: the Whale Fall, and it is generated at spacing 16 with a separation of 3 in the surface-structures step. Those are dense numbers by any standard — for comparison, most exploration mods place their builds at spacings in the forties.
The practical effect is that whale falls are something you will meet while swimming rather than something you mount an expedition for. If you are diving in the mod's biomes at all, you will find them.
Building with what grows there
The coral and stone that make these biomes worth visiting also make a building palette: the mod carries 67 stonecutting recipes, so each new block family cuts into slabs, stairs and walls in a single step. A stonecutter is the most useful tool to bring back from a reef trip.
Version note
The 1.21.1 build has 176 crafting recipes to 1.20.1's 155. The biome and coral content is shared, but a handful of craftable items exist only on the newer line, which is worth knowing before following an older tutorial.
Diving prepared
Because everything here is underwater and the structures are shallow-spaced rather than deep, the limiting factor is breath rather than danger. The mod's own diving armour — and the glowing variant in particular, made with 
Glowslime — solves both visibility and endurance in one set.
Covers the mod’s in-game guide topics: Seagrass Bed Tropical River Cold Trench Coral Reef Deep Warm Ocean Bleached Lophelia Coral Block
Bleached Lophelia Coral
Lophelia Coral Block
Dead Lophelia Coral
Lophelia Coral
Raft