Slimes in Slime Rancher are usually joyous little creatures that just make you want to smile. This will all change after you get your first batch of Quantum Slimes. These critters are notorious for escaping their enclosure and being a pain to get back in. Luckily, they can be pretty easy to deal with once you learn about what makes this strange species tick or, in this case, teleport around.

Related: Slime Rancher: How To Find Lucky Slimes - And What To Do With Them

Be aware that Quantum proofing your ranch is going to cost a bit of money and will likely even take up one of your precious enclosure plots in the end.

Updated February 13, 2022 by William Quick: Slime Rancher 2 is on the horizon, and yet there is still so much to learn about the first game. This includes trying to understand the unpredictable Quantum Slimes and how to keep them safely on your Ranch.

The Problem With Quantum Slimes Escaping

Radioactive Quantume Slimes

Quantum Slimes are a unique type of slime that is harmless but have a high chance of escaping their enclosure. This can create a problem for several reasons, the first being plorts everywhere, the second being the clean-up, and the third and most problematic being when they start changing other slimes into quantum slimes.

In some cases, ill-placed Rad Slimes and Boom Slimes have combined with Quantum Slimes to create an annoyingly dangerous combo.

If you keep Quantum Slimes, you will want to ensure that there are no dangerous slimes for them to combine with roaming around free in the immediate area.

Even worse, they are always creating ghosts, also known by many players as Qubits. Qubits appearing doesn't mean they are about to escape; it's just something they do naturally. This does make sucking them up hard, though, as the ghosts can easily trick players.

Related: Ranked: All The Slimes In Slime Rancher

Quantum Slime Behavior

A Quantum Gordo Slime Smiling In Place

Quantum Slimes are one of the more unusual Slimes to encounter and even trickier to keep on your Ranch. The Qubits they produce can definitely take some getting used to, and they will always produce them. With that in mind, the following notes should be taken into account:

  • A happy Quantum Slime (0% agitation) will produce one Qubit approximately every 20 seconds
  • When spawned, a Qubit will remain for around 16 minutes
  • Qubits will travel in straight-line in whatever direction they're facing for about five minutes before stopping
  • Qubits have all the characteristics of the Slime that created them except for any equipped Fashion Pods
  • If spray a Quantum Slime with water, you'll destroy all of its Qubits, and it won't be able to make a new one for up to 20 minutes

The best way to keep Quantum Slimes happy and reduce their Qubit production and teleport probability is to feed them fruit and give them toys with the Puzzle Cube being their favorite.

How To Contain Quantum Slimes On Your Ranch

Phase Lemons

The escape of Quantum Slimes is directly related to how happy the little critters are. In fact, Quantum Slimes won't start escaping until you hit 20% agitation, which is pretty easy to avoid with the right preparations.

  • To begin with, you will need to ensure your slimes are properly fed. Quantum Slime loves Phase Lemons, so go ahead and use a nearby plot to grow a Phase Lemon Tree.
  • Ensure that you always have food loaded into their enclosure to keep hunger at bay. You can change the food distribution settings and adjust the number of slimes to make sure everyone is fed.
  • Next, you will want to install speakers into the enclosure. Using speakers will decrease agitation levels.
  • Throwing slime toys into the enclosure will help as well.
  • If all else fails, water can be used to spray on the slimes or Qubits to control teleportation and calm agitation.

However, as long as you prepare a harmonious enclosure and ensure the slimes are fed, things should go well.

Angry Tabby Largo Pink Slimes in Slime Rancher

Look at Slimes' faces to determine if they are happy and smiling.

Keep in mind that even happy Quantum Slimes will produce Qubits. Qubits randomly appear in the room, so they will often pop up outside the enclosure. This is no sign of alarm. However, if you are noticing that Qubits begin to appear more rapidly, this is a sign of growing agitation.

Next: Slime Rancher: Where To Get Every Slime