Convenient cleaning of the substrate, completely independent of water changes. For effective dirt removal of mulm deposits or leftover food. Easily and quickly installed, the EDEN PDG 60 mulm vacuum removes dirt without excessively disturbing the aquarium gravel. The dirt particles are filtered out by the integrated sponge, and the cleaned water is pumped back into the aquarium. This allows for clean and thorough work without the worry of removing too much water or overflowing the bucket. Thanks to the transparent and compact suction tubes, even hard-to-reach areas are easy to clean.