While some fish species are known to swim in shoals,
Julia fish do not.
Julia fish, also known as Julii Corydoras, are a type of catfish. Catfish are generally solitary or live in small groups of 2-3 individuals, rather than forming large shoals.
Here's why:
* Bottom Dwellers: Julii Corydoras are bottom dwellers, which means they spend most of their time foraging on the substrate. This lifestyle doesn't lend itself to shoaling behavior, as they don't need to move in coordinated groups for protection or hunting.
* Territorial: While not aggressively territorial, Julii Corydoras can be somewhat possessive of their chosen areas in the tank, especially when it comes to food.
However, keeping a group of 6 or more Julii Corydoras together can provide some benefits:
* Social Interaction: They will show social behaviors and interact with each other, forming loose bonds.
* Reduced Stress: Being in a group can reduce stress levels and encourage natural behaviors.
* Increased Activity: They might be more active and playful in a group setting.
Remember: It's important to provide adequate space and hiding places for your Julii Corydoras, regardless of how many you keep. They are peaceful and enjoy exploring their environment.