Going Green for Koi Carp Owners

Published on 4 October, 2020 at 5:04 pm

Euro-matic Pool Insulation balls have been available for years in natural and translucent blue variants. However, recently customers have been asking for a green variant which has been used to cover swimming pools in the past. Both the green and blue are traditionally mixed together to give an effect of water ripples and make it attractive.

Therefore by popular demand, we have introduced translucent green Pool Insulation Balls to our range of stock colour and this is now available for 2020/21 season Shop Page

Pouring a layer of Euro-matic Pool Insulation Balls on to the water surface, they effortlessly mould to any shape and form a practical and attractive cover over 91% of the surface area allowing oxygenation and thus prevent stagnation.

For fish such as Koi Karp, pond insulation balls in the winter months will help retain the heat and ensure they remain active. Because the balls move, the fish can be fed or viewed and fish that remain above 10°C will be active all year round so continue to grow and remain healthy. Anything below 4°C can be fatal. Our pond insulation balls are supplied in a translucent material so light will still pass though creating a well lit environment.

The frequent use of a pool cover throughout the year also significantly reduces evaporation by up to 65mm a month, especially in windy conditions. While every effort is taken during the construction of a pool to use the most efficient insulating materials, still up to 70% of its heat is lost from the surface open to atmosphere. A typical pool 6m x 10m heated to 25°C with an air temp of 18°C can lose 30,000 BTUs per hour.

Installed in minutes

Building structures for ponds and swimming pools can also be time consuming, costly and unsightly. There is nothing simpler than pouring a bag of pool insulation balls on in the winter months and then simply scooping them off in the summer with a net and storing the bag until next winter in your garage. There is no comparison to the overall look of our our quality pool insulation balls versus other homemade options.


  • Reduces energy costs by up to 75%
  • Simple to install and remove with zero maintenance
  • Attractive and enables light to still enter the pool
  • Enables water to breath (oxygenate) preventing stagnation
  • Enables fish to remain active, feed and grow all year
  • Eliminates unsightly winter structures
  • Reduction of evaporation by up to 90%
  • No chemical leeching by safe use of FDA approved plastics

Feel free to use calculator by just inserting your pool shape and dimensions

Ball Calculator for Koi Carp