More ocean biomes :3

I have a few ideas based off of real life for minecraft biomes :D

1. sandbars

a biome technically

(you could argue just a unique terrain generation that could happen near beaches, but stony shores exist so...)

and it gives a chance to add stuff like shells (placed similarly to leaf litter and pink petals) to beaches and the ocean floor for a bit of color.

2. ocean floors

I would love to see yeti crabs and hydrothermal vents in really deep trenchs in ocean biomes.

if this were to be added limiting enviromental light (not block light, think sun light) would also allow new mobs like a deep water drowned or maybe abandoned sub (idk about the sub but could be cool)

3. salt marshes

oppritunity for a new blocks/items (based around salt)

also could be a diiferent place for mud blocks to spawn

shellfish oppritunity??