Board Thread:Questions and Answers/@comment-32833373-20170811212356/@comment-32833373-20170813033111

So this is the layout it is a big cube with just cobblestone then there about and eight by eight corners for mobs to spawn and in the middle of those has a stream of water to wash them down a 2 by 2 hole. It is about 24-28 blocks in the air. The hole down below the huge mob grinder cube has it incased in another cube of cobblestone so no stray light can come in. My problem is that no monsters are spawn and it is confusing why because it is literally pitch black in there but none are spawning I hope this helped