Traits

Your furarrium has a mutation to give them extra tails!

Your furarrium's glass is filled with blood! Spooky!

Dyed water that looks like blood and is clearly meant to be blood is not allowed; it will be counted as this trait instead.

Your furarrium has a mutation to give them extra body parts!

This includes extra arms, legs, eyes, ears, etc., but NOT tails.

Your furarrium has not one, but MULTIPLE pairs of wings!

A furarrium must have this trait if they have more than two wings anywhere on their body.

Your furarrium can change between a few, or many, different colors1

Traits cannot be changed and objects cannot move between forms.
This trait allows the hue of the fur/hair, eyes, glass, contents, and objects on the body to change color.
Changing the shape or placement of fur/hair markings is considered multiform, not color-changing.

Your furarrium has a trait that's only around sometimes!

This trait allows your furarrium to have a trait that can either exist or not (e.g., eyes that can be normal or turn blank, wings that are optional, objects on body that are only sometimes there, etc.)
You cannot have this trait be replaced by a different trait, only removed.

Your furarrium's limbs are exceptionally long!

This trait does not include long legs due to breed. These limbs or body have to be so long that they are undeniably unnatural; more than double the length they would normally be.

Your furarrium's head has been entirely replaced by an object!

This includes absolutely any appropriate object, but some common options are TV screens, pumpkins, fire, simple shapes, and food.
The furarrium's head must not resemble an animal's or human's head at all (Screen faces count as Metal/Robot/Electronic Parts on Body)

Your furarrium has so many plants on their body, you can't see any of their fur at all!

There is still fur underneath this furarrium's plants on body, but they can't be seen underneath all of the plants.