Pre-filters are essential to prevent large particle waste, small fish, baby fish, invertebrates, plant leaves and other undesirables from getting inside and clogging the main filtration system. Pre-filters save on the wear and tear of your main filter.

Most pre-filter sponges are flimsy and will either be constantly falling off, clogging or fall apart quickly. Filter-Max uses a high-grade sponge and solid construction that fits securely onto the filter intake tube. It also serves as a biological back up system if the main filter needs to be shut down, and can be used with most powerheads to cycle a new aquarium immediately when transferred from an established aquarium. The Filter-Max has better aesthetic value than many other pre-filters. It appears slim-line and doesn't stick out like a sore thumb!