Deep underground lake

It is an underground lake of a cave generated from Y axis 0 or less.
Mobs glow squid, drowned, and new mobs "cave fish" will spawn in this underground lake, but the blind hunter "tracker" of this deep underground lake, which reacts to vibrations like Warden, will spawn.
The tracker is a fairly rare monster, and the condition for this mob to appear is that a Sculk Sensor has been created in the water of this underground lake.
When this deep underground lake is created, you can enjoy more adventures in the cave.
If you have any other good ideas, let us know in the comments.
Thank you for taking a look at my thoughts.