Mobs stack on EcoSMP. This allows players to have large quantities of mobs in small areas while helping balance the Hunter job, without harming server performance too much.
Right-Click a stack of animals with food to breed them. They will eat the same amount of food items as there are mobs in the stack with one click. For example, a stack of 32 pigs will eat 32 carrots with one right-click and create a stack of 16 baby pigs. Once the baby pigs grow up they will join back together with the original stack.
Stack Size - Up to 64 mobs per stack
Animals - 16 stacks of any combination of cows, mooshrooms, pigs, chickens, rabbits, or sheep within 32 blocks of one another
Iron Golems - 4 stacks of iron golems within 32 blocks of one another
Turtles - 12 total turtles within 32 blocks of one another (turtles do not stack)
Villagers - 32 total villagers within 32 blocks of one another (villagers do not stack)
Sniffers - 6 total sniffers within 32 blocks of one another (sniffers do not stack)
Merge Radius - 8 blocks
Stack Size - 64 mobs per stack.
Limit - 8 stacks of any combination of zombies, skeletons, slimes, creepers, or spiders within 64 blocks of one another.
Merge Radius - 8 blocks, 16 blocks for blaze/ghast.