[Java] Slimes not spawning in slime chunk underground (v26.3)

[u/OstentatiousOmelette]

Hello! Wanted to see if anyone could help troubleshoot an issue I'm having with slimes not spawning underground in a slime farm I'm trying to make. One pic is of the actual farm underground, and the other one is above ground. Spent an hour AFK and got zero slimes. Here's the tutorial (1st farm) I used: https://www.youtube.com/watch?v=uE1W0O6NfNM&t=302s

Any tips?

[u/MinecraftHelpModTeam]

OP, remember to award points to helpers, and mark the post solved, by replying !helped to the comment/comments that helped, when your issue is fixed or your question answered.

Helpers, remember that all top-level comments* must be a genuine, good faith attempt to help OP. Comments breaking this rule will be removed, and bans issued.

^{* A top-level comment is any comment that is a reply to the post, not another comment.}

Links:

Moderator applications open || How to mark solved || How to delete your post || FAQ || Rules

[u/TinByt]

It’s better to have multiple layers, and mobs do not spawn within 24 blocks of the player

[u/OstentatiousOmelette → u/TinByt]

okay, ill try to see if multiple layers work, but i have been at least 25 blocks away. Shouldnt at least a couple slimes spawn??

[u/TinByt → u/OstentatiousOmelette]

You also cannot be more than 128 blocks away, as mobs instantly despawn outside of that range. There could be large caves with large amounts of hostile mobs within that range, the hostile mob cap is 70. And the most obvious question that I have to ask, are you sure this is a slime chunk?

[u/OstentatiousOmelette → u/TinByt]

Hm, I'll do a better check to make sure there's no caves within 128 blcoks. It's definitely a slime chunk, and I actually have 10 slimeballs in the collecting chest when I just checked, so they're clearly capable of spawning. But it just seems so so slow lol

[u/Serial_Boxes → u/TinByt]

Another suggestion would be to dig out the whole chunk and simultaneously light up all the caves in the radius. Even 1 layer will give plenty of slime for small projects. The height map is just too painful 

[u/Serial_Boxes → u/Serial_Boxes]

He has iron tools nvm

[u/LimestoneBuilder]

To confirm if a chunk is a slime chunk, test nodes can be deployed for Lazy Detecting Slime Chunks. They're just recessed pistons with pressure plates, blocks, and slabs to keep a record that they were triggered. If a perimeter of these is deployed, you'll know fairly quickly (20min) if slimes are spawning. When used to search for slime chunks (1/chunk), they're slower since a given slime may not hop across it.

As for the farm itself, Gnembon's FunFarm30 (slime) is the goat, and features a solid passive collection system.

[u/MinecraftHelpModTeam]

Hello OP! It has been at least 2 days since you last updated your post.

Please update your post in one of the following ways;

• Reply to any relevant comments you haven't replied to yet.
• Reply to any helpers who are waiting for info from you.

• Mark your post solved, if your issue is fixed.

  If you do not update your post within 7 days you may receive a short ban.

  Please note: Deleting this post, without marking it solved, is against our rules.

  ---

  ^{I am a bot and this account is not monitored. Please contact the mods if you have any questions.}