Set de mousses BioPress 4000 - Oase UTILITÉ_NITRATES depicting a little boy pouring

depicting a little boy pouring water from a jug

Kit aération pour petit bassin jusqu'à 1M³

PVC TEE TO GLUE 45 DEGREE 63 MM

it is because there is a shortage of carbon dioxide (roughly "CO2") in the pond

Set de mousses BioPress 4000 - Oase UTILITÉ_NITRATES depicting a little boy pouringFilter sponges are the heart of a filter: they not only perform classic filtration, but also serve as a habitat for microbacteria. This small biological oasis in the filter sponges ensures the recycling of toxic substances generated in the pond: in the blue sponges, the toxic substances are transformed into harmless but invigorating substances for algae (nitrification), which are then transformed into natural gas in the black sponges