Pond Water Problems in Cape Town? We Diagnose & Fix the Root Cause

Green water. Fish stress or unexplained deaths. Constant issues that keep coming back.

At Mizu Aquatic Systems, we don’t rely on guesswork or temporary fixes. We identify the exact cause of your pond problems using professional water testing and system diagnostics.

We specialise in koi ponds and recirculating aquaculture systems (RAS), analysing key factors such as water quality, filtration performance, and overall system balance. By measuring what’s happening beneath the surface, we uncover issues before they become visible — and before they cost you.

Our approach focuses on long-term stability, not quick fixes. By assessing parameters like the nitrogen cycle, oxygen levels, and KH stability, we provide clear, practical solutions that improve water quality, protect your fish, and keep your system running properly.

Whether you manage a private koi pond, an estate feature, or an aquaculture system, our goal is the same:

A stable, balanced aquatic system that works — and stays working.

We serve Cape Town, Paarl, Stellenbosch, Somerset West, and nearby surrounding areas.