If you've been playing Minecraft for any length of time, you know that XP is life. Without a steady flow of experience points, you can't enchant your god-tier Netherite gear, repair your mending tools, or flex on the server with a rainbow of glowing armor. For years we've built mob grinders, enderman farms, and piglin bartering setups—but back in June 2024, the Tricky Trials update dropped, and it changed everything. Today, in 2026, I'm still using a bizarrely efficient technique that turns an ordinary iron golem into an XP pinata. Let me walk you through the Infested silverfish farm that somehow hasn't been patched yet. 😈

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The Infested Status Effect: A Game-Changer from 1.21

The Tricky Trials update (also known as 1.21) didn't just add trial chambers and the mace—it introduced three crazy new status effects: Infested, Oozing, and Weaving. While Oozing lets you spawn slimes on kill (great for slimeball farms) and Weaving spreads cobwebs, Infested is the real MVP for XP. Here's the deal: any mob with the Infested effect has a small chance to spawn a silverfish when it takes damage. The effect can stack, making the spawn rate absolutely bonkers. So what happens if you hit a sturdy mob—say, an iron golem—with multiple doses of Infested? You get a shower of silverfish that never seems to stop. 🐟

I first stumbled across this farm design soon after 1.21 launched, when a player named EpicGamer3786 shared their creation. They used eleven iron golems, all pumped full of Infested potions, to turn a simple pit into a silverfish geyser. The concept was genius, but I knew we could push it further.


How I Built My Ultra-Efficient Silverfish XP Farm (2026 Version)

Over the last two years I've refined the setup into something that can take you from level 0 to 30 in under a minute—without crashing your game (usually). Here's what you need:

Material Quantity Why You Need It
Iron Golems 4–8 Host mobs; more = higher spawn rate
Infested Potions 12+ Splash type, extended duration preferred
Allays 2–3 Alternative hosts with health regen (optional)
Glass or solid blocks A stack To contain the silverfish
Hopper + Chests 1 each Collection system for any stray drops
Water streams / magma Various Kill mechanism — I prefer magma blocks
Name tags 4–8 To keep golems from despawning
Redstone + Dispensers 1 setup Automates potion throwing

Step 1: Trap Your Mobs

Build a glass enclosure about 5x5 blocks wide and 3 blocks deep. In the middle, place a platform with an iron golem (or several) standing on it. I like to use four golems arranged in a square, each one named with a tag so it sticks around. The golems need to be safely contained but still able to take damage—I use a single air block above each one, then glass so I can see the chaos.

Step 2: Infested Overload

Brewing Infested potions requires a Breeze Rod (from the trial chambers) and a fermented spider eye. Mix an awkward potion with a breeze rod to get a Wind Charged potion, then corrupt it with the spider eye to get Infested. Let me tell you, the first time I brewed this I felt like a mad scientist. 🧪 Extend the duration with redstone, then turn them into splash potions with gunpowder. Load your dispensers calibrated to hit the golems every few seconds.

Some players prefer using Allays because they can regenerate health naturally, meaning they never die from all that silverfish spawning. I've tried it both ways, and honestly, Allays are more server-friendly—but iron golems just feel more epic.

Step 3: The Kill Pit

Below the golem platform, create a funnel with water streams that pushes spawned silverfish into a central kill zone. I use magma blocks because they damage mobs without destroying the XP orbs, but you can also use fall damage or a campfire. The key is to let the silverfish die quickly so you can stand nearby and soak up all that precious experience.

Step 4: Flip the Switch and Watch

When you activate the dispenser clock, the golems get the Infested effect stacking up to level 4 or 5. Every tick they take splash damage from the potion (yes, Infested potions damage the host), and almost every damage tick spawns one or more silverfish. They immediately drop into the pit, mill around in panic, and die on the magma. The XP orbs fly directly to you. It's like a fountain of pure, glowing satisfaction. 💥


The Performance Nightmare (But Worth It)

I won't lie: this farm can bring even a beefy PC to its knees. Spawning hundreds of silverfish per second generates lag like you wouldn't believe. The first time I turned on my 11-golem version, my frames dropped from 120 to 12 FPS in seconds. I've since optimized by capping the golem count at 4 and using Allays paired with a well-tuned clock. If you're on a server, definitely warn your friends before flipping the switch. They might think the world is ending. 😅


Is It Still Here in 2026? The Patch That Never Came

Back in 2024, the community was 100% sure Mojang would nerf this into the ground. It's just too easy—a brand-new player can set up a basic version in a few hours and rocket to level 100 in a day. But here we are, two major updates later (remember the End Reborn update and that whole Pale Garden thing?), and Infested farms are still untouched. Maybe Mojang secretly loves us. Maybe they're busy adding snorkeling dolphins. Whatever the reason, I'm not complaining.

Of course, I still recommend checking patch notes every update, because a fix could come any day. But for now, this is hands-down the fastest XP farm in the game.


Quick Tips from My Failures

  • Always name your golems. One lost iron golem means 36 iron ingots down the drain, and your farm stops working.

  • Use a lever-based off switch. This farm can fill your mob cap so fast that other passive mobs stop spawning. Turn it off when you're done.

  • Kill chamber height matters. Silverfish can climb walls if the pit isn't deep enough. A 3-block drop before the magma works perfectly.

  • Combine with a sculk catalyst for a fun experiment. Silverfish deaths create sculk charges that can spread across the area. Not useful, but it looks wicked.

Beyond Silverfish: What Else Can You Farm?

The Tricky Trials update opened so many doors. With the Oozing effect, you can build a slimeball farm that puts swamp-based slimes to shame. Weaving lets you auto-generate string and cobwebs. I've even seen players combine Infested with a vindicator raid farm to make silverfish act as distractions while pillagers pile up. Creativity is the only limit. 🚀

So if you haven't tapped into the Infested meta yet, grab a breeze rod, trap some iron giants, and start printing XP. Just maybe keep the volume down—your eardrums will thank you.


Happy grinding, everyone! If you've built your own version or found an even crazier design, share it with me. I'm always looking for the next broken farm. Now if you'll excuse me, I have to go repair my mending pickaxe for the 400th time today. 🔨