Topic category: Mod ideas exchange
As the title suggests, what biomes would you like to see in this aquatic based mod? They can be anything you can think of. This will allow the mod to reach the Alpha stage much faster than it would with my own ideas and you will also be credited in the mods description.
Here's the mod forum if you want to see some of the stuff already in: https://mcreator.net/forum/65379/what-lurks-below