Better deep oceans

Oceans are friendly of 1.13, so here are my ideas 1.-Mobs "Abyssal Fish" This fish spawns at depths of 22 blocks or greater, including in cave aquifers. If brought to shallower depths, it begins taking sun damage. It attacks if you get within 5 blocks, dealing 4 points (2 hearts) of damage, and has 10 hearts of health "Barnacle" Based on the 2017 mob vote, this creature spawns at any depth. It uses its tongue to drag you into the depths before releasing you. It deals 0.5 points of damage (one hit per second) and has 10 hearts of health 2.-Items When killed, the fish has a 50% chance to drop an item (and a 10% chance to drop both): the "Abyssal Fish Eye" and the "Abyssal Fish Antenna" The Abyssal Fish Eye is used to create a "Sea Vision" potion; combining a Night Vision potion with the eye allows you to see through the ocean water as if it were empty space Combining the Abyssal Fish Antenna with a helmet of any material grants you a dynamic light source with a 6-block radius Killing the Barnacle yields a 25% chance for it to drop its tongue. Crafting this with 3 iron ingots, a piece of string in the center, and the tongue at the tip creates a grappling hook. This allows you to move within a 10-block range and pull objects or enemies toward you from a range of 8 blocks 3.-New Mechanics As you descend into the ocean, the surroundings become darker Being more than 20 blocks deep in the water causes you to suffocate faster and take an additional half-heart of damage