If your pond isn’t working properly, the issue is usually not random. Most problems like green water, fish deaths, or poor filtration, are caused by underlying imbalances in the system. Cape Town, Stellenbosch, Somerset West, Paarl and even surrounding areas like Franschoek and Grabouw
Below are some of the most common pond issues and what typically causes them.
FAQ about Koi Ponds & water quality
Green pond water is usually caused by algae growth, which develops when there is excess sunlight and nutrients in the water.
In most cases, the real issue is an imbalance in filtration or water quality that allows algae to thrive.
Fish deaths are often linked to poor water quality, especially ammonia buildup, low oxygen levels, or unstable pH conditions.
These problems are not always visible, which is why fish can become stressed before any clear signs appear.
Yes. Many pond problems begin before they are visible.
Water testing helps identify issues early, allowing you to correct them before they affect fish health or water clarity.
Filtration systems can fail due to poor design, clogged media, or insufficient biological capacity.
Even if the system is running, it may not be processing waste effectively.
Recurring issues usually indicate a deeper imbalance in the system.
Temporary fixes may improve things short-term, but without addressing the root cause, the problem will return.
Unpleasant smells are often caused by a buildup of organic waste, low oxygen levels, or poor circulation.
This usually points to underlying water quality or filtration issues.
Water testing typically looks at key parameters such as ammonia, pH, KH, and oxygen levels.
These indicators help determine whether the system is stable and functioning properly.
We provide pond diagnostics and water quality testing across Cape Town, including Somerset West, Stellenbosch, Paarl, and surrounding areas such as Grabouw & Franschoek.
Our pricing is dependent on your system size, complexity and location (travel expenses).