How to Stop Baby Zombies and Baby Husks From Spawning in Your World

What the mod actually changes

Once No Baby Zombies Mod is installed, the game no longer creates baby variants of zombies or husks at all. This applies to natural spawning during the night, spawner-based spawning, and any spawn egg use. You do not need to toggle a config option or run a command for the base behavior — the removal is baked into how the mobs are registered.

Verifying it is working

1.

2. Look at the size of each zombie. Every one should be full-sized; none should be the small, fast variant.

3. Go to a desert and check husks the same way — all should be adult-sized.

4. If you want a faster test, use a zombie spawn egg repeatedly in a lit, enclosed area. No baby should ever appear.

5. If babies still show up, another mod or datapack is likely overriding zombie spawning. Check your other mob-related mods and remove or reconfigure the conflicting one.

Things to keep in mind

Removing baby zombies also removes their faster movement speed and their ability to fit through one-block gaps, so old farms or traps designed around baby zombies will simply stop producing them. Existing baby zombies already in a world may persist until they are killed or despawn, so clear them out manually if you want a fully clean world.