Arrange the aquarium in accordance with the instructions for use and assemble the filter. In this context, please make sure that the filter media are positioned correctly, e.g. as this is also shown on the packaging of the filter display box. Remove all plastic bags that might protect the filter media (carbon sponge, filter floss, Nitrax sponge and optional Cirax/Phorax basket). If you wish to glue a background or a filter cover into your aquarium, this is the best time. Then load the aquarium with the ground material and the plants as well as other decorative elements, e.g. stones and roots. After that, fill the aquarium with water. Tip: It is best to carefully pour the water through the filter in order to protect the existing set-up. Run the aquarium without fish for approx. 10 days in order to let the important bacteria form in the filter sponges and clear the water of pollutants. Use bioBoost to activate new filter media faster, and thus shorten the run-in period of your aquarium. Use the advice of your specialist retailer.