Peacock Gudgeons are small, colorful freshwater fish loved by many aquarium hobbyists. Their bright blue bodies with yellow highlights and red markings make them stand out in planted aquariums. Despite their striking appearance, Peacock Gudgeons are known for their peaceful and gentle temperament, which makes them suitable for community tanks.
However, choosing the right tank mates is still important. Because Peacock Gudgeons are small and calm fish, aggressive or very active species can stress them. In this guide, you’ll learn the best fish that can live with Peacock Gudgeons, which species to avoid, and how to create a peaceful community aquarium.
Peacock Gudgeon Temperament
Before selecting tank mates, it helps to understand how Peacock Gudgeons behave in an aquarium.
Peaceful Nature
Peacock Gudgeons are generally peaceful fish. They rarely chase or attack other species and prefer calm environments. Most of their time is spent exploring plants, rocks, and decorations.
Territorial During Breeding
While peaceful most of the time, male Peacock Gudgeons may become slightly territorial during breeding. They guard caves where eggs are laid and may chase other fish that get too close.
Slow and Calm Swimmers
Peacock Gudgeons are not fast swimmers. Because of this, they can be stressed by very active fish that dominate feeding areas.
What Makes a Good Tank Mate for Peacock Gudgeons
Not every fish will be compatible with Peacock Gudgeons. The best tank mates usually share similar characteristics.
Peaceful Temperament
Calm fish that do not chase or bully others are ideal companions.
Small to Medium Size
Since Peacock Gudgeons grow to about 2–3 inches, tank mates should be similar in size.
Fish That Prefer Similar Water Conditions
Peacock Gudgeons thrive in:
- Temperature: 72–79°F
- Slightly acidic to neutral water
- Well-planted aquariums
Fish with similar requirements are the best match.
Fish That Use Different Tank Areas
Tank mates that swim in the middle or upper areas reduce competition for territory.
Best Peacock Gudgeon Tank Mates
These fish are commonly kept with Peacock Gudgeons in peaceful community aquariums.
Neon Tetras
Neon Tetras are small schooling fish that stay mostly in the middle of the tank. Their calm nature makes them excellent companions for Peacock Gudgeons.
Ember Tetras
Ember Tetras are tiny but peaceful fish that do well in planted aquariums. Their bright orange color contrasts beautifully with Peacock Gudgeons.
Harlequin Rasboras
Harlequin Rasboras are hardy, peaceful fish that swim in schools. They are active but not aggressive, making them suitable tank mates.
Corydoras Catfish
Corydoras catfish are peaceful bottom dwellers that spend their time searching the substrate for food. They rarely interact with Peacock Gudgeons.
Kuhli Loaches
Kuhli loaches are gentle bottom-dwelling fish that prefer hiding among plants and decorations. They are excellent companions in planted community tanks.
Otocinclus Catfish
Otocinclus are small algae-eating fish that help keep aquariums clean. They are peaceful and rarely bother other species.
Cherry Shrimp
Peacock Gudgeons often live peacefully with shrimp in planted tanks, though baby shrimp may occasionally be eaten.
Guppies
Guppies are peaceful and colorful fish that thrive in community aquariums.
You can learn more about them in this guide: Guppy fish care
Tank Mates to Avoid With Peacock Gudgeons
Some fish are not suitable companions for Peacock Gudgeons.
Aggressive Cichlids
Large cichlids can bully or attack small fish like Peacock Gudgeons.
Very Fast or Hyperactive Fish
Species such as tiger barbs may stress Peacock Gudgeons because they are fast and sometimes aggressive.
Large Predatory Fish
Bigger fish may see Peacock Gudgeons as food.
Fin-Nipping Fish
Fish known for fin-nipping behavior can cause stress and injury.
Ideal Tank Setup for Peacock Gudgeon Community Tanks
A good aquarium setup helps reduce stress and keeps fish healthy.
Tank Size
A 20-gallon aquarium works well for a small group of Peacock Gudgeons with tank mates. Larger tanks allow more fish and better stability.
Plants and Decorations
Peacock Gudgeons love planted aquariums. Dense plants, caves, and driftwood create hiding spots and natural territories.
Gentle Filtration
They prefer calm water movement, so strong currents should be avoided.
Balanced Fish Population
Avoid overcrowding the tank. Too many fish in a small space can lead to stress.
Tips for Keeping Peacock Gudgeons Peacefully
Keep Them in Small Groups
Peacock Gudgeons feel more comfortable when kept in groups.
Provide Caves for Breeding
Small caves or hollow decorations help reduce territorial stress during breeding.
Feed a Varied Diet
Offer a mix of frozen foods, live foods, and quality pellets.
Monitor Tank Behavior
If aggression appears, rearranging decorations can sometimes reset territories.
FAQs
Can Peacock Gudgeons live with tetras?
Yes. Many tetra species, including neon and ember tetras, make excellent tank mates.
Are Peacock Gudgeons aggressive?
No. They are generally peaceful fish and suitable for community aquariums.
Can Peacock Gudgeons live with shrimp?
Yes, they often live with shrimp, though very small shrimp may occasionally be eaten.
How many Peacock Gudgeons should be kept together?
A small group of 4–6 fish is ideal for most aquariums.
What tank size do Peacock Gudgeons need?
A 20-gallon tank or larger works well for a small community setup.
Final Thoughts
Peacock Gudgeons are beautiful, peaceful fish that fit perfectly into planted community aquariums. Because they are calm and relatively small, choosing gentle tank mates is important for maintaining harmony in the tank.
Fish such as tetras, rasboras, corydoras, and small algae eaters make excellent companions. With the right setup, plenty of plants, and compatible species, Peacock Gudgeons can thrive in a colorful and peaceful aquarium.
