Interpet Prime Gravel Filter
This aquarium gravel cleaner is designed to separate and remove debris from aquarium gravel.this self starting gravel cleaner will make the gravel rise slightly into the cylinder of the cleaner where the debris is removed and the gravel will fall back down into the aquarium, all waste will come out with some water ,so whilst using the gravel cleaner you are effectively carrying out your routine 25% water change at the same time.