u/aznboy84

The idea is very simple, critters drown inside a liquid lock, and they can't move if the pneumatic door is closed.

The eggs never get out of the room, they are shipped directly into two in-place "drowning chamber", one for stone hatch and one for the others.

The only automation is to open the door so the hatch can get out and refill the ranch when critter count below desired amount.

The room size is 17x9, it fits perfectly into a ladder system with each row 7 tiles away from each other. Each ranch is an independent system so you don't have to build them in an array, or stacking with each other.