Ok so I got a spawner, built a 50x50 block area right above the void, put torches up and put a slime spawner in the middle, then waited. NO SLIMES ARE SPAWNING!!! WHAT DO I DO. Are you just not allowed to spawn slides on Skyblock? Please help me!!!
You need to be in a "slime chunk" to be able to spawn slimes with a spawner, there are multiple applications on the internet which show you how to find slime chunks near to you in your world. You just need to know the seed, which I believe on .net is simply "skyblock"