Peacock Gudgeon Size: How Big Do They Get?

The Peacock Gudgeon is a captivating, colorful fish species. Known scientifically as Tateurndina ocellicauda, it hails from Papua New Guinea. A freshwater dweller, it is a favorite in the aquarium world thanks to its stunning hues. This fish is perfect for you if you value aesthetics and peaceful tank mates.

peacock gudgeon size

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What is the Average Size of Peacock Gudgeon?

In the fascinating world of aquatic life, peacock gudgeons (Tateurndina ocellicauda) stand out due to their vibrant color patterns and unique size variance. Let’s shine some light on the average size of this intriguing species.

Primarily, peacock gudgeons are relatively small, taking up a minuscule portion of underwater territory. On average, a healthy adult peacock gudgeon reaches a length between 1.5 to 3 inches (approximately 3.8 – 7.6 centimeters).

Now, let’s delve into the difference in size between the sexes. To begin with, male peacock gudgeons often surpass their female counterparts in size. Specifically, they grow up to 3 inches (7.6 centimeters in length.

On the other hand, their female counterparts are usually smaller, with an average length of 1.5-2 inches (3.8-5.1 centimeters). Yet, they make up for their smaller size with their fabulous, intense coloration.

While these are the average sizes, keep in mind that multiple factors can influence the final size a peacock gudgeon may achieve. Factors like diet, general care, and tank conditions play an important role in their growth.

Here’s a brief overview of Peacock Gudgeon size:

  • Average full-grown size: 1.5 – 3 inches (3.8 – 7.6 cm)
  • Male size: Up to 3 inches (7.6 cm)
  • Female size: 1.5 – 2 inches (3.8 – 5.1 cm)

These numbers paint the picture of the average size of peacock gudgeons.

Bear this in mind next time you’re observing these miniature marvels, as it’s vital information for their care and habitat setup.

What is the Growth Rate of Peacock Gudgeon?

Peacock Gudgeons possess a moderate to swift growth rate. Essentially, these vibrantly colored fish can reach their full size within a span of mere months, precisely 4 to 6 months. However, the acceleration of their growth rate significantly hinges on the conditions in which they’re raised.

  • Diet: One of the prominent influencers of their growth rate is their diet. An optimized diet encourages healthy and swift growth.
  • Water Quality: Peacock Gudgeons thrive in pristine water conditions. High-quality water enhances their growth rate.
  • Tank Size: Sufficient space is also crucial. A constricted environment may hamper their development.

It’s important to recognize that every Peacock Gudgeon is unique. Thus, there may be idiosyncratic variations in the growth rate. Getting this insider’s perspective on the growth rate of Peacock Gudgeons sheds light on the path they follow from juvenility to adulthood.

Knowledge and understanding of these details will shape your journey to nurture these beautiful creatures in the most conducive environment possible.

Are There Size Differences Between Male and Female Peacock Gudgeons?

Yes, there are differences in size between male and female Peacock Gudgeons.

Male Peacock Gudgeon

You’ll notice that the male Peacock Gudgeon can grow quite larger. In length, they have the potential to reach up to 3 inches or 7.6 centimeters. This impressive size makes them one of the standout fish in an aquarium setting.

Female Peacock Gudgeon

Females, on the other hand, tend to be smaller. The typical female Peacock Gudgeon will average at about 1.5 to 2 inches or 3.8 to 5 centimeters in length. They may not have the same length as the males, but their bright colors can make them just as attractive to aquarium enthusiasts.

Now, it’s important to understand that these are just average sizes. Some factors like diet, tank environment, and general health can lead individual fish to be a bit larger or smaller.

  Male Peacock Gudgeon Female Peacock Gudgeon
Average Length (inches) Up to 3 1.5 to 2
Average Length (centimeters) Up to 7.6 3.8 to 5

So, whether you have a male or a female Peacock Gudgeon, keep in mind that their size can vary. Providing a well-rounded diet and plenty of room to swim can encourage your fish to reach their full potential. It’s also crucial to take note that while size is a factor, it is the vibrant color and active behavior that truly makes the Peacock Gudgeon a delight to keep.

When does Peacock Gudgeon Reach Full Size?

Peacock Gudgeon attains their full size within their first year of life. It’s critical to note that it heavily relies on their living conditions from the moment they are hatched. Better living conditions, including proper feeding, tank size, and cleanliness, can speed up the process.

  • Feeding Regime: Feeding the Peacock Gudgeon with nutritious meals several times a day can significantly influence the speed of growth. Since these are small fish, feeding small portions frequently, rather than one large meal, is better.
  • Tank Size and Cleanliness: The size and cleanliness of the tank matter as much as the feeding. A spacious tank not only helps in the fish’s growth but also provides a comfortable living environment. Make sure to keep the water clean and the tank free from any toxins.

The path from a tiny fry to a fully-grown 3-inch (7.6 cm) male or a 2-inch (5 cm) female Peacock Gudgeon may seem like an uphill task. However, when provided with the right environment and care, the journey can be swift and rewarding.

Take full advantage of the initial year of the Peacock Gudgeon’s life, because this is when they experience their most rapid and significant growth. Post that, their growth rate markedly slows down.

The colorful journey of raising a Peacock Gudgeon from a tiny hatchling to a fully grown, vibrant fish can indeed be exciting! Take these factors into consideration, and you’ll find that the timeline isn’t as stretched out as it may initially appear.

What Factors Influence the Size of Peacock Gudgeon?

Many factors influence the final size of a peacock gudgeon. This ranges from the genetic makeup of the fish to external elements such as diet and environment. By understanding these factors, you can help provide the optimal conditions for your peacock gudgeon’s growth.

Firstly, genetics plays a significant role. Much like humans, peacock gudgeons inherit traits from their parents, including size. A fish from a line of larger ancestors might likely grow larger than average.

Secondly, diet is a crucial factor. Peacock gudgeons, being omnivores, require a balanced diet. This variety should include both high-quality fish flake foods and occasional treats of live or frozen brine shrimp or daphnia. Providing them well-balanced meals ensures they get essential nutrients for growth.

The environment can also have a substantial impact. Peacock gudgeons thrive in well-planted aquariums with ample hiding spaces. Stress can stunt their growth partially, so it’s important their habitat suits their needs.

Lastly, the water temperature is fundamental. Peacock gudgeons prefer warmer waters, ideally between 72 and 79 degrees Fahrenheit (22-26 Celsius). Temperatures outside this range can impact their metabolism, ultimately affecting growth.

Starting with the right genetics, feeding a balanced diet, providing a suitable environment and maintaining optimal water temperature are the primary factors that influence the size of your peacock gudgeons. Applying these guidelines, you can help your peacock gudgeon reach its full potential size.

How do Peacock Gudgeons Compare in Size with Other Species?

Peacock Gudgeons are smaller than many species in the world of aquarium fish. For instance, the average angelfish, a regular inhabitant of many fish tanks, easily grows up to a sizeable 6 inches (15.24 cm). In contrast, the male Peacock Gudgeon typically reaches only 3 inches (7.62 cm), while females measure even less – averaging between 1.5 and 2 inches (3.81 and 5.08 cm).

Even in comparison to other gudgeon species, the Peacock Gudgeon stays on the petite side. Purple Spotted Gudgeons, for example, can grow beyond the 4 inches (10.16 cm) mark.

This size disparity is well-illustrated in the following comparison table:

Species Average Size (inches) Average Size (cm)
Peacock Gudgeon 1.5 – 3 3.81 – 7.62
Angelfish 6 15.24
Purple Spotted Gudgeon 4 10.16

Remember, however, that size is not everything. Peacock Gudgeons may be smaller in size, but they are well-loved for their colorful appearance and mild-tempered nature. This makes them fantastic companions in your aquarium, irrespective of their size.


To wrap things up, Peacock Gudgeons truly is a marvel when it comes to their size and growth rate. These facts make them a great addition to any aquarium. Feel free to leave a comment to share your experiences with these fascinating creatures!

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