Translations:Breeding/6/en
From Pixelmon Wiki
To make it easier to construct a suitable environment for breeding, it is possible to place the ranch block in a biome that already contains suitable blocks for the breeding Pokémon, but this is not required. The ranch block's range can also be increased with ranch upgrades (obtained as special drops) in order to increase the number of blocks that are counted in the environment. The maximum range of a ranch block is 15×15, requiring twelve ranch upgrades to achieve.