Personalized Consulting at the Highest Level

We are always available to answer your questions, address individual concerns, or provide personal advice.
Our goal is to assist you with precision, experience, and genuine passion – for results that do justice to your pond.

Email: aquasanctum@icloud.com
Phone: 0 157 596 635 90
Instagram: _aqua_sanctum_

Cedric Grünewald
Alexander Grünewald

News

Koi-Futter ist nicht gleich Koi-Futter – so findest du das richtige für deine Koi
Koi food is not all the same – how to find the right food for your Koi
Many koi keepers eventually face the same question: Which food is right for my koi? The selection is huge: inexpensive food from hardware stores, various premium varieties, floating or sinking... Read more...
Sauerstoff im Koiteich – Wissenschaftlicher und praxisorientierter Leitfaden
Oxygen in Koi Ponds – A Scientific and Practical Guide
1. Introduction Importance of Oxygen in a Koi Pond The oxygen content in a koi pond is one of the most important, yet often underestimated, parameters of the entire pond... Read more...
Koi Krankheiten erkennen und behandeln
Recognizing and Treating Koi Diseases
A healthy koi swims calmly, feeds actively, and exhibits controlled behavior in the pond. Changes are often the first sign that something is wrong. Common symptoms: Lethargy or apathetic behavior... Read more...
Pflanzen der Natürlichepfilter
Plants of the natural filter
Plants in the pond – beauty, health and benefits combined Plants in a pond are far more than just decorative elements. They are essential for a healthy pond ecosystem :... Read more...
Die Farbe kommt nicht nur vom Futter
The color doesn't just come from the food
Water quality and nutrition – the keys to healthy, colorful koi Anyone who keeps koi knows that the beauty and health of these noble fish depend not only on their... Read more...
So überwintern Ihre Koi's gesund und sicher
This is how your koi will overwinter healthy and safe
Koi carp (Cyprinus carpio) are among the most popular pond fish worldwide. Their robustness and longevity make them fascinating companions – provided they and their habitat are properly prepared for... Read more...
Unsichtbare Kräfte im Koi-Teich
Invisible Forces in the Koi Pond
A koi pond isn't just a body of water—it's a closed, living ecosystem. The quality of the water determines the health, growth, and color of the koi. But what happens... Read more...
Warum Filtration für Teiche essenziell ist
Why Filtration is Essential for Ponds
Filtration is the heart of every high-quality pond system. It determines not only water quality, but also biological balance, fish health, and visual aesthetics. In professional systems—especially koi ponds or... Read more...
Futter für Koi's Grundlagen
Food for Koi - Basics
Koi carp (Cyprinus carpio) are among the most popular ornamental fish worldwide. Their vibrant colors, elegance, and long lifespans of up to several decades make them particularly valuable to pond... Read more...
Das ist Aqua Sanctum
That's Aqua Sanctum
A private koi pond is far more than just water in the garden. It's a source of peace, an oasis of relaxation, and a place where nature, technology, and design... Read more...