Pond Designing

Pond Designing

Pond Designing is a fascinating endeavour that involves careful consideration of various factors to ensure the well-being of these captivating fish. From pond size and filtration systems to water quality and environmental needs, every aspect plays a crucial role. 

In this article, we’ll delve into the intricacies of Koi pond design, emphasizing the importance of meeting the specific requirements of Koi, with a nod to Tony’s Biopond, a prominent company in South India specializing in pond management.

Pond Design Considerations:

Size, Depth, and Volume:

When designing a Koi pond, the size, depth, and volume are crucial elements. It’s essential to take into account the specific needs of the Koi environment, considering factors such as space for growth and swimming.

Material Used:

The construction material is a vital decision. Concrete and fibreglass are common choices, with large ponds in South Eastern Asian countries often using reinforced concrete. Smaller ponds opt for pre-formed fibreglass for ease of installation.

Filter Design or Filtration Systems:

The filtration system is the heart of a Koi pond. Choosing between a custom in-ground filter or a commercially designed external system involves considering factors like location, size, and the inclusion of bottom drains. A well-designed filter system ensures water quality and simplifies pond maintenance.


Pumps, akin to the heart of the pond, are selected in conjunction with the filtration system. The right pump selection influences water flow rate, filter effectiveness, and the operation of water features.

Aeration and Water Features:

Oxygen is vital for all living organisms, including Koi. Aeration becomes crucial as the Koi population grows. Aeration at the bottom enhances microbial activity and helps manage excess water during heavy rain.

Surface Skimmer:

A surface skimmer is essential for removing floating debris, ensuring a cleaner and healthier pond environment.

Bottom Drains:

Bottom drains are integral for easy pond maintenance, preventing the accumulation of debris.

Water Plants:

The inclusion of water plants depends on the pond’s size and shape. Careful planning and selection of suitable water plants contribute to the overall pond design.


Pond edging serves multiple purposes, from preventing surface water entry to enhancing aesthetics and providing a safe platform for feeding and netting Koi.

UV Light Filter:

Pond Designing

A UV light filter helps control bacteria and parasites, ensuring the sterilization of pond water.

Water Supply:

Adequate water supply is essential to counteract evaporation. Incorporating a water inlet pipe or having a nearby tap ensures a consistent water source.

Power Source for Pumps:

Multiple power sources with individual circuit breakers are recommended to prevent a single pump failure from affecting the entire water circulation and aeration system.

Meeting Koi’s Environmental Needs:


Providing ample space is crucial for Koi, considering their potential growth of up to one meter. The pond size is directly proportional to the growth rate of these Living Jewels.

Oxygen Level:

Maintaining an optimal dissolved oxygen level of 8 mg/litre at 25 degrees Celsius is essential for Koi and the biological filter, ensuring peak conditions for these prized fish.


Designing a Koi pond involves a meticulous balance of various factors to create an environment that caters to the specific needs of these remarkable fish. Tony’s Biopond, a distinguished company in South India, offering expertise in pond management, enthusiasts can trust in creating a pond that not only meets but exceeds the requirements of their Living Jewels.

Tony Augustine

About the author

In 2012, I helped establish KJA & Sons and have been deeply engaged in many swimming pool initiatives ever since. My expertise lies in designing filters for chlorine-free swimming pools, as well as living water gardens, koi fish ponds etc.